
Ethiopians are the native inhabitants of Ethiopia, as well as the global diaspora of Ethiopia. Ethiopians constitute several component ethnic groups, many of which are closely related to ethnic groups in neighboring Eritrea and other parts of the Horn of Africa.

The Agaw are a Cushitic ethnic group inhabiting Ethiopia and neighboring Eritrea. Ethnically and culturally they are part of a wider population of Cushitic peoples, though they are most closely related to the Qemant people.

The Anyuak, also known as Anyua and Anywaa, are a Luo Nilotic ethnic group inhabiting parts of East Africa. The Anuak belong to the larger Luo family group. Their language is referred to as Dha-Anywaa. They are primarily found in Gambela Region in western Ethiopia, South Sudan as well as Sudan. Group members number between 200,000 and 300,000 people worldwide. Many of the Anyuak people now follow Christianity. It is one of the first of the Nilotic groups to become almost entirely Christian, following the Shilluk people.

The Arbore are a Cushitic ethnic group living in southern Ethiopia, near Lake Chew Bahir. The Arbore people are pastoralists. With a total population of 6,850, the Abore population is divided into four villages, named: Gandareb, Kulaama, Murale, and Eegude.

There is a very small community of Armenians in Ethiopia, primarily in the Ethiopian capital Addis Ababa. Armenians had traded with Ethiopia as far back as the first century AD.

The Banna people, are an Omotic ethnic group in Ethiopia inhabiting the Lower Omo Valley, primarily between the Weyto and Omo rivers. They live in an area between the towns of Gazer and Dimeka with the traditional area of the Banna being divided into two ritual regions, Ailama and Anno. According to the 2007 census, they number at around 47,000 individuals. They engage primarily in agriculture and supplement this by pastoralism, hunting, and gathering. They are mainly Muslim, however, several thousand are Christian, and they have their own king.

The Berta (Bertha) or Funj are an ethnic group living along the border of Sudan and Ethiopia. They speak a Nilo-Saharan language that is not related to those of their Nilo-Saharan neighbors. Their total Ethiopian population is about 183,000 people.

The Daasanach are a Cushitic ethnic group inhabiting parts of Ethiopia, Kenya, and South Sudan. Their main homeland is in the Debub Omo Zone of the Southern Nations, Nationalities, and People's Region, adjacent to Lake Turkana. According to the 2007 national census, they number 48,067 people, of whom 1,481 are urban dwellers.

Dizi is the name of an ethnic group living in southern Ethiopia. They share a number of somatic similarities with certain culturally related peoples of south-western Ethiopia, which include the Sheko and Nao, the Gimira, the Tsara, the Dime, the Aari and certain sub-groups of the Basketo people. A. E. Jensen has gathered these groups under the label of the "ancient peoples of southern Ethiopia". They speak the Dizin language.

The Dorze are part of one of the Gamo village living small group in the Gamo highlands.They are native Gamo's

The Gabra ( ) are related to the wider Oromo people in the Horn of Africa, they mainly inhabit the Moyale and Marsabit regions of northern Kenya and the highlands of southern Ethiopia.
The Gumuz are an ethnic group speaking a Nilo-Saharan language inhabiting the Benishangul-Gumuz Region and the Qwara woreda in western Ethiopia, as well as the Fazogli region in Sudan. They speak the Gumuz language, which belongs to the Nilo-Saharan family. The Gumuz number around 200,000 individuals.

Habesha peoples is an ethnic identifier frequently employed to refer to Semitic language-speaking peoples mainly found in the highlands of Ethiopia and Eritrea. Historically, the term was applied to predominantly Christian groups, and this usage remains common today. The term is used in varying degrees of exclusion and inclusivity: Most commonly, it includes all highland Semitic language-speaking Christians; sometimes it is employed in an expanded sense to include Muslim communities as well as Christians. At the extremes, the term is currently sometimes employed in a restrictive sense to only refer to speakers of Tigrinya, while recently, some within diasporic communities have adopted the term to refer to all people of Eritrean or Ethiopian origin.

Hamar people are a community inhabiting southwestern Ethiopia. They live in Hamer woreda, a fertile part of the Omo River valley, in the Debub Omo Zone of the Southern Nations, Nationalities, and Peoples Region (SNNPR). They are largely pastoralists, so their culture places a high value on cattle.

The Harari people are an Semitic ethnic group inhabiting the Horn of Africa. Members traditionally reside in the walled city of Harar, called simply Gēy "the City" in Harari, situated in the Harari Region of eastern Ethiopia. They speak the Harari language, a member of the South Ethiopic grouping within the Semitic subfamily of the Afroasiatic languages.

The Irob people are an ethnic group who live in a predominantly highland, mountainous area by the same name in northeastern Tigray Region, Ethiopia. They speak the Saho language. Most of them profess the catholic Christian religion and are mostly farmers. The etymology of the name Irob is debatable, but Irob's elders say that the term comes from the Saho word "Oroba", which means "welcome to our home". The boundaries of Irobland are, to an extent, identical to the Irob woreda; both are bordered by the following areas: Dabri-Mela to the north, Hado to the east, the Afar Region to the east and south, Shoumezana and Gulomakeda to the west, and Saesi Tsaedaemba to the south. The first two neighbors are Saho speakers and predominantly Muslim, the third are Muslim Afars, and the others are Tigrigna-speaking Christians.

Italians of Ethiopia are immigrants who moved from Italy to Ethiopia starting in the 19th century, as well as their descendants. King Menelik II did not allow the sale of lands belonging to Ethiopia to Italians (Eritrea) and probably allowed France (Djibouti) to solidify his centralized power and have external trading partners. Most of the Italians moved to Ethiopia after the Italian conquest of Abyssinia in 1936. Italian Ethiopia was made of Harrar, Galla-Sidamo, Amhara and Scioa Governorates in summer 1936 and became a part of the Italian colony Italian East Africa, with capital Addis Ababa. and with Victor Emmanuel III proclaiming himself Emperor of Ethiopia.

The Kafficho people are an ethnic group hailing from Ethiopia. As of 2007, they accounted for only 1.2% of Ethiopia's population. Most of the Kafficho live in Ethiopia's Kafa Zone, Southern Nations, Nationalities and People's Regional States region. Their traditional language, Kafa or Kaffinono, is still spoken among much of the population. Coffee may derive its name from the Kafa zone, where it was first cultivated, though this is considered unlikely.

Kambaata people are Cushitic ethnic group that inhabit in the Southern Nations, Nationalities, and Peoples' Region of Ethiopia. They speak the Kambaata language. It was a province of Ethiopia beginning in the early 15th century and ending in the mid-17th century; Ethiopian rule was once again established in the late 19th century under Emperor Menelik II. During this first period, Kambaata province was largely Christianized. The former province is contained within the contemporary Kembata Tembaro Zone of SNNPR.

The Konso, also known as the Xonsita, are a Lowland East Cushitic-speaking ethnic group primarily inhabiting south-central Ethiopia.

The Kwama, are a Nilo-Saharan-speaking community living in the Sudanese-Ethiopian borderland, mainly in the Mao-Komo special woreda of the Benishangul-Gumuz Region in Ethiopia. They belong, culturally and linguistically, to the Koman groups, which include neighboring communities such as the Uduk, Koma, and Opuuo. Although they traditionally occupied a larger territory, they have been forced to move to marginal, lowland areas by the Oromo from the 18th century onwards. In some villages Kwama, Oromo and Berta live together. The Kwama are often called "Mao" by other groups, especially by the Oromo. The people who live in the southern area and near the Sudanese borderland often call themselves "Gwama" and use the term "Kwama" to refer to those living further to the south and in Sudan. These other "Kwama" are usually known by anthropologists as Koma or Komo. In recent years, many people belonging to this ethnic group have been resettled by the Ethiopian state in order to provide them with clinics and schools.

The Majang people, or Majangir, live in southwestern Ethiopia and speak a Nilo-Saharan language of the Surmic cluster. The 1998 census gave the total of the Majangir population as 15,341, but since they live scattered in the hills in dispersed settlements, their actual total number is undoubtedly much higher. They live around cities of Tepi, Mett'i, and scattered southwest of Mizan Teferi and towards Gambela.

The Mekan or Me'en are a Surmic ethnic minority group inhabiting southwestern Ethiopia. The 1998 census lists them as consisting of 56,585 individuals. In Ethiopia, ethnic communities speaking Nilo-Saharan languages are referred to as "Nilotic", but this is not exactly the same meaning as the Nilotic language family. The Mekan traditionally partake in a unique festival known as Ka'el, during which the Mekan women sexualize the process of Mekan men gaining weight, and assist and encourage them in becoming as fat as possible. Mekan women will often select partners during this festival, typically from among the men they assisted in becoming larger.

The Mursi are a Surmic ethnic group in Ethiopia. They principally reside in the Debub Omo Zone of the Southern Nations, Nationalities, and People's Region, close to the border with South Sudan. According to the 2007 national census, there are 11,500 Mursi, 848 of whom live in urban areas; of the total number, 92.25% live in the Southern Nations, Nationalities, and People's Region (SNNPR).

The Nuer people are a Nilotic ethnic group concentrated from Bentui in South Sudan to the far east near Baro River going into Ethiopia in Gambela Region. The Nuer speak the Nuer language Thok Naath, which belongs to the Nilotic language family. They are the largest ethnic group in South Sudan. The Nuer people are pastoralists who herd cattle for a living. Their cattle serve as companions and define their lifestyle. The Nuer call themselves "Naath".
The Nyangatom also known as Dongiro and pejoratively as Bumé are Nilotic agro-pastoralists inhabiting the border of southwestern Ethiopia and southeastern South Sudan and in the Ilemi Triangle with populations residing in both countries.they are mixed farmers They speak the Nyangatom language.

The Saho are a Cushitic ethnic group from Eritrea, and they also inhabit some parts of northern Ethiopia. They speak Saho as a mother tongue.

The Shabo are an ethnic group of southwestern Ethiopia. They call themselves "Sabu" and are sometimes called "Mikeyir" by their neighbors. Their language is of uncertain classification and shows some similarities with the Nilo-Saharan, particularly Koman, languages. The Shabo live in several dispersed settlements in the regional states of the Gambela Region and the Southern Nations, Nationalities, and People's Region, surrounded by Majangir and Shekkacho peoples, with whom they intermarry. The former have heavily influenced Shabo culture. The Shabo have adopted several customs and elements of material culture from the Majangir.

The Soddo or Kistane Gurage (ክስታኔ) are a subgroup of the Gurage who inhabit the south-central part of Ethiopia, considered the northern geographic and linguistic subset of the Gurage and speak the Soddo Gurage language or Kistanigna (ክስታንኛ). They primarily inhabit the Soddo (woreda) in the Gurage Zone, but large amounts also live in various parts of Ethiopia, particularly in Addis Abeba, Nazret, Butajira, and Dire Dawa. They are related to the Sebat Bet Gurage and other Gurage sub-groups, however, in contrast to the Sebat Bet Gurage and Silte, they are exclusively and almost entirely Ethiopian Orthodox Tewahedo Christians. The Soddo Gurage are known for and pride themselves on their Orthodox Christian identity, which they have historically practiced since ancient times, and of which their name Kistane derives its name from and is the traditional and preferred name to the people.

The Somalis are an East Cushitic ethnic group native to the Horn of Africa who share a common ancestry, culture and history. The Somali language is the shared mother tongue of ethnic Somalis, which is part of the Cushitic branch of the Afroasiatic language family, and are predominately Sunni Muslim. They form one of the largest ethnic groups on the African continent, and cover one of the most expansive landmasses by a single ethnic group in Africa.

The Tomal, also known as Tumal or Tumaal, is an artisanal caste among Somali people. Their traditional hereditary occupation has been as smiths and leather production, and they have been endogamous.

Surma is a collective term for three ethnic groups — Chai, Timaga, and Suri Baale — mainly living in Surma (woreda), in southwestern Ethiopia. Suri is composed of three subgroups; Chai, Timaga and Baale groups (self-names), politically and territorially different, but all speaking 'South East Surmic' languages within the Surmic language family, which includes Mursi, Majang, and Me'en languages.

The Warjih, fully known as the Tigri-Warjih, are an ethnic group inhabiting Ethiopia. The prefix for their traditional name, Tigri, comes from the word Tijaari, which is an adjective in the Arabic language that literally translates to "merchant." Their tribal name Warjih is eponymous with the name of their ancestral homeland. Thus, Tigri-Warjih essentially means "merchant of Warjih."

The Welayta, Wolayta or Wolaitta are an ethnic group and its former kingdom, located in southern Ethiopia. According to the most recent estimate (2017), the people of Wolayta numbered 2.4 million in Welayta Zone only, or 2.31 percent of the country's population, of whom 289,707 are city-dwellers. The language of the Wolayta people, similarly called Wolaytta, belongs to the Omotic branch of the Afro-Asiatic language family. Despite their small population, Wolayta people have widely influenced national music, dance and cuisine in Ethiopia.

The Wollo Oromo people are an Oromo subgroup inhabiting the historic Wollo Province of northern Ethiopia.