Jan Banaś (born Hans Dieter Banas; 29 March 1943), nicknamed Bubi, is a Polish former professional footballer who played as a forward.

He began his career as a youngster playing for AKS Mikołów (1956–59) before moving to Zryw Chorzów in 1959-62, Polonia Bytom (1962–69) and Górnik Zabrze (1969–75).

Aged 32, he was allowed to move to the United States, and then played in a string of countries including Mexico (with Atlético Español), Belgium, and France well after his fortieth birthday.

In 1966, together with Jan Liberda and Norbert Pogrzeba, Banaś decided to illegally migrate to Western Europe; they all escaped before Polonia's match IFK Norrköping.

He was unable to achieve much success even in the German Oberliga, and half a year later he returned and was pardoned by the Polish Football Association.