Anna Kiesenhofer (German pronunciation: [ˈanaː ˈkiːsn̩ˌhoːfɐ]; born 14 February 1991) is an Austrian professional cyclist and mathematician, who rides for UCI Women's WorldTeam Roland Cycling.

[2] Unfancied for a medal pre-race, she attacked in the first seconds of the event and soloed to victory, her pursuers mistakenly unaware of her position, in a win described as "one of the greatest upsets in Olympics and cycling history".

[3] Kiesenhofer studied mathematics at the Vienna University of Technology (2008–11), completing her Master's degree at Emmanuel College, Cambridge (2011–12).

[11] In July 2021, as Austria's sole representative in the 137 km-long Olympic women's road race in Tokyo, Japan, she won the gold medal, crossing the finish line 75 seconds in front of Annemiek van Vleuten of the Netherlands.

[2] Kiesenhofer broke away by herself for the final 41 km while climbing the Kagosaka Pass, dropping Shapira and Plichta, who were later caught by the peloton.

[12][14] Many in the peloton, including silver medalist Van Vleuten who celebrated mistakenly thinking she had won the gold,[15] finished the race unaware that Kiesenhofer was still in front of them.