Timothy Allen Salazar Smyczek (/ˈsmiːtʃɛk/ SMEE-chek; Polish pronunciation: [ˈsmɨtʂɛk]; born December 30, 1987) is an American former professional tennis player.

Smyczek recorded wins over several notable players in his career including Kei Nishikori, John Isner, Ivo Karlović, Sam Querrey, Robby Ginepri, Gilles Müller, and Benjamin Becker.

Smyczek reached the quarterfinals of the SAP Open in 2011, beating Kei Nishikori en route, but lost to Gaël Monfils.

He fared better at Wimbledon; he made it to the third round of qualifying for the first time, losing to Matt Reid in four sets.

Tim reached the doubles final of the 2013 Hall of Fame Tennis Championships with Rhyne Williams as his partner.

In the final the American duo fell to Nicolas Mahut and his partner and fellow Frenchmen Edouard Roger-Vasselin.

At the 2015 Australian Open, Smyczek entered the main draw as a qualifier, and lost in a four-hour match that ended 7–5 in the fifth set against World No.