Wojciech "Wojtek" Kowalski (born 10 October 1967 in Inowrocław) is a former tennis player from Poland, who represented his native country as a qualifier at the 1988 Summer Olympics in Seoul. There he was defeated in the first round by fellow qualifier Tony Mmoh from Nigeria. The right-hander reached his highest singles ATP-ranking on 25 July 1988, when he became the number 109 of the world.
He is married to Klaudia Kowalski and has two sons, Jonas and Moritz. Right now he is working as a tennis coach for TB Erlangen in his own tennis school Tennisschule Kowalski.