Anthony Edward Bass (born November 1, 1987) is an American professional baseball pitcher who is a free agent.

He has previously played in Major League Baseball (MLB) for the San Diego Padres, Houston Astros, Texas Rangers, Chicago Cubs, Seattle Mariners, Miami Marlins, and Toronto Blue Jays.

As a junior at Wayne State, Bass was named the 2008 Great Lakes Intercollegiate Athletic Conference Pitcher of the Year.

[2] The San Diego Padres selected Bass in the fifth round of the 2008 Major League Baseball draft.

[5] Bass stayed with the big league club for the remainder of the year, pitching out of the bullpen until making two more starts in late September.

[9] Bass spent the 2014 season split between the Astros and the team's Class AAA affiliate, the Oklahoma City RedHawks.

After the 2015 season, the Rangers traded Bass and Leonys Martín to the Seattle Mariners for Tom Wilhelmsen, James Jones, and a player to be named later (Patrick Kivlehan).

[24] He signed a one-year contract worth $1.5 million with the team on December 3, 2019, in order to avoid arbitration.

With the 2020 Toronto Blue Jays, Bass appeared in 26 games, compiling a 2–3 record with 3.51 ERA and 21 strikeouts in 25.2 innings pitched.

[27] In April 2021, Bass was the pitcher during an extremely rare walk-off hit by pitch to lose a game against the New York Mets.

With the bases loaded and the score tied in the bottom of the ninth inning, batter Michael Conforto's elbow was grazed by Bass's pitch, albeit on a clear strike where camera footage seemed to show Conforto recklessly extending his elbow into the pitch.

[35][36] On May 29, 2023, Bass again created controversy after he shared a video on instagram describing the selling of Pride-themed merchandise as “evil” and “demonic”, in which he endorsed boycotts of Bud Light, Target and potentially other corporations, calling on Christians to support it.

"[37][38] Jays general manager Ross Atkins later confirmed to People that "the relief pitcher's stance had become a "distraction" in the clubhouse", causing his release from the club.