WThe 1991 AAA Championships was an outdoor track and field competition organised by the Amateur Athletic Association (AAA), held from 26–27 July at Alexander Stadium in Birmingham, England. It was considered the de facto national championships for the United Kingdom, ahead of the 1991 UK Athletics Championships.
WThe athetics competition at the 1991 All-Africa Games was held from 23–27 September 1991 in Cairo, Egypt.
WThe 1991 Central American and Caribbean Championships in Athletics were held at the Estadio Heriberto Jara Corona in Xalapa, Veracruz, Mexico between 26–28 July.
WThe athletics competition at the 1991 European Youth Olympic Days was held from 18 to 20 July. The events took place in Brussels, Belgium. Boys and girls born 1976 or 1977 or later participated 24 track and field events, divided equally between the sexes with the exception of 2000 metres steeplechase and pole vault for boys but not girls.
WThe 1991 German Athletics Championships was the 91st edition of the national championship in outdoor track and field for Germany. It was held on 26–28 July at the Niedersachsenstadion in Hannover. It served as the selection meeting for Germany at the 1991 World Championships in Athletics. It marked the resumption of an all-Germany national competition for athletes from East Germany and West Germany, following the fall of the Berlin Wall. The merged competition programme followed that of the 1990 West German Athletics Championships, with the only amendment being the inclusion of a women's team aspect to the mountain running championship.
WThe 3rd IAAF World Indoor Championships in Athletics were held at the Palacio Municipal de Deportes San Pablo in Seville, Spain from March 8 to March 10, 1991. It was the first Indoor Championships to include relay races as well as women's triple jump, albeit as a non-championship event. There were a total number of 518 athletes participated from 80 countries.
WAt the 1991 Mediterranean Games, the athletics events were held at the Olympic Stadium in Athens, Greece. A total of 38 events were contested, of which 23 by male and 15 by female athletes. An exhibition heptathlon also took place, with Algeria's Yasmina Azzizi being the only athlete to compete. Several hundred athletes from fourteen Mediterranean nations took part in the competition.
WThe athletics competition at the 1991 Pan American Games was held in Havana, Cuba.
WThe 1991 Soviet Athletics Championships was the 63rd and final edition of the national championship in outdoor track and field for the Soviet Union. It was held on 10–13 July at Republican Stadium in Kiev, Ukrainian SSR. The competition was held within the 1991 Soviet Spartakiad. A total of 42 events were contested over four days. The marathon competition was held earlier on 21 April in Bila Tserkva.
WThe 1991 UK Athletics Championships was the national championship in outdoor track and field for the United Kingdom held at Cardiff Athletics Stadium, Cardiff. It was the second time that the event was held in the Welsh capital, following on from the 1990 championships there. Strong winds affected several of the jumps on the programme. A women's hammer throw was added to the schedule for the first time, though it was not classified as a UK championship event at the competition.
WAt the 1991 Summer Universiade, the athletics events were held at the Don Valley Stadium in Sheffield in the United Kingdom from July 14–25. A total of 43 events were contested, of which 23 by male and 20 by female athletes.
WThe 1991 USA Outdoor Track and Field Championships took place between June 13–15 at Downing Stadium on Randall's Island in New York City. This was the last USA Outdoor Track and Field Championships organized by The Athletics Congress. The following year's Olympic Trials served as the National Championships during the last year of TAC's existence. The competition acted as a way of selecting the United States team for the 1991 World Championships in Athletics in Tokyo, Japan August 23 to September 1 later that year.
WThe 3rd World Championships in Athletics, under the auspices of the International Association of Athletics Federations, were held in the Olympic Stadium in Tokyo, Japan between August 23 and September 1 and athletes from 167 countries participated in the event.