Kaisa Pajusalu (born 19 February 1989, in Pärnu, Estonia) is a former Estonian rower.

She has won two medals at the Junior World Championship in the double sculls event with Jevgenia Rõndina.

In 2009[1] and 2010[2] Pajusalu also won a silver medal at the U23 World Championships in the single sculls event.

Her older brother Raimo is a former volleyball player who played professionally in Estonia, Austria, Belgium and France.

He was a member of the Estonian national team from 2000 to 2014 and represented his country at the 2009 and 2011 European Volleyball Championships.