Kira Katharina Walkenhorst (born 18 November 1990) is a German retired beach volleyball player who played as a blocker.

Walkenhorst won the gold medal at the 2016 Summer Olympics in Rio de Janeiro[3] together and at the 2017 World Championships with her teammate Laura Ludwig.

With teammate Laura they finished 3rd (Last) in Pool-B with 2 losses In the quarter-final match against Ross and Walsh they won in 3 sets of (21-18, 19–21, 15–11), advancing to the semi-final against Larissa and Talita of Brazil.

Another GOLD medal for the Olympic winners in straight sets of (21-18, 21–16)[10] against the Swiss pair of Zumkehr and Heidrich Walkenhorst opened the 2017 season at Fort Lauderdale Major with temporary partner Julia Großner while her regular partner Laura Ludwig recovered from a shoulder injury.

[12] At the world championships in Vienna, Ludwig / Walkenhorst won the gold medal after beating Lauren Fendrick and April Ross in the final.