Marko Strahija (born 28 May 1975 in Zagreb) is a backstroke swimmer from Croatia, who competed at three Summer Olympics between 1996 and 2008.

Strahija won the silver medal, behind Aaron Peirsol of the United States, in the 200 m backstroke at the 2002 FINA Short Course World Championships.

Strahija's urine sample, taken in an out-of-competition control in July 2002, tested positive for human chorionic gonadotropin (hCG).

In October 2007 Strahija again tested positive for hCG, which caused him to miss the European Short Course Championships held in December that year.

This time, subsequent medical tests found testicular cancer, and Strahija immediately underwent surgery.