
The Head of the Security Service of Ukraine serves as a director of the Security Service of Ukraine. The head of the Security Service of Ukraine is ex officio a member of the National Security and Defense Council of Ukraine. He or she is appointed or dismissed by the Supreme Council of Ukraine on proposition of the President of Ukraine.

Ivan Hennadiyovych Bakanov is a Ukrainian politician who has been the Head of the Security Service of Ukraine since 29 August 2019. Before that, he was a Deputy Head of the Security Service of Ukraine.

Vasyl Serhiyovych Hrytsak was the Head of the Security Service of Ukraine (SBU). He became the SBU's acting head on 18 June 2015, replacing Valentyn Nalyvaichenko. The Verkhovna Rada approved his appointment on 2 July. On 22 May 2019 President Volodymyr Zelensky appointed Ivan Bakanov the first deputy chairman of the SBU. Following this Hrytsak went on vacation, and Bakanov began to perform his duties. Hrytsak never returned to his post in the SBU and Bakanov was officially appointed his successor on 29 August 2019.

Ihor Oleksandrovych Kalinin is a former Ukrainian politician who served as Advisor to the President of Ukraine from 2013–2014 and Head of the Security Service of Ukraine from 2012-2013.

Valeriy Ivanovych Khoroshkovsky is a Ukrainian businessman, former head of the Security Service of Ukraine, former Minister of Finance, and former First Vice Prime Minister. According to Ukrainian and East European media Khoroshkovsky is one of Ukraine's richest people.

(Gen. Ret.) Yevhen Kyrylovych Marchuk was a Ukrainian politician. During his career, Marchuk was prime minister of Ukraine, presidential candidate, secretary of the National Security and Defense Council, and Defense Minister of Ukraine.

Valentyn Oleksandrovych Nalyvaichenko is a Ukrainian diplomat and politician.

Colonel General Ihor Petrovich Smeshko served as the head of the Security Service of Ukraine (SBU) from 2003 to 2005, where he supported the opposition during the Orange Revolution. In 2010, he entered politics with the Strength and Honor party, which he formed with several former security and intelligence officials. He was chairman of the Intelligence Committee under the President of Ukraine.

Oleksandr Valentynovych Turchynov is a Ukrainian politician, screenwriter, Baptist minister and economist. He is the former Secretary of the National Security and Defence Council of Ukraine.

Oleksandr Hryhorovych Yakymenko is a Russian military pilot and a Ukraine public servant, former Head of the Security Service of Ukraine.