Stanislaw "Stan" Tyminski (Polish pronunciation: [sta'?iswaf t?'m?i?sk?i]; born January 27, 1948) is a Canadian businessman of Polish origin, dealing in electronics and computers, and a sometime-politician in both Poland and Canada.
Although Tyminski was born in Pruszków, he was a completely unknown person in his native Poland until shortly before the 1990 presidential election, he emerged from the first ballot as the second strongest candidate; defeating liberal prime minister Tadeusz Mazowiecki and forcing Solidarity leader Lech Walesa to stand a second ballot.
After Walesa defeated him by a wide margin, Tyminski was a leader of Party X in Poland (1990–1995) and then returned to Canada to resume his business activities.
Tyminski also contested the 2005 Polish presidential election.