Krzysztof Cwalina (born 5 February 1971 in Wrocław, Dolnośląskie) is a retired freestyle swimmer from Poland.

He competed for his native country at the 1992 Summer Olympics in Barcelona, Spain, finishing in eighteenth place in the men's fifty-meter freestyle event.

As of 2012[update] he is a program manager on the Common Language Runtime team at Microsoft Corporation.

He and Brad Abrams coauthored Framework Design Guidelines (Addison-Wesley, 2005; 2nd 2008, ISBN 978-0321545619), winner of a Jolt Award in 2006.

This biographical article related to a Polish swimmer is a stub.