Stian Boretti (born 20 December 1981) is a Norwegian former professional tennis player.

[1] Born in Nesodden, Boretti had a career best singles ranking of 375 on the professional tour, winning six ITF Futures singles titles.

He had a best doubles ranking of 511 and won five ITF Futures doubles tournaments.

Boretti, a five-time King's Cup winner, is the Norwegian record holder for Davis Cup appearances.

His Davis Cup career spanned 15-years, between 2000 and 2014, with 26 singles and 12 doubles wins, from 39 ties.