Anthony Christopher Clark
- Bats Both, Throws Right
- Height 6' 7", Weight 240 lb.
- School San Diego State University, University of Arizona
- High School Valhalla High School, Christian High School (El Cajon)
- Debut September 3, 1995
- Final Game July 12, 2009
- Born June 15, 1972 in Newton, KS USA
In high school, Tony Clark earned All-American honors in baseball and basketball. He once held records for career and single-season points for San Diego-area high school basketball; his new single-season mark broke the previous one held by Bill Walton. Clark also played basketball in college, although he injured his back in his freshman year and had to miss all of 1991 as a result. He decided to concentrate on baseball after that. After being drafted second overall by the [[Detroit Tigers] in the 1990 amateur draft, after Chipper Jones, he had begun playing in the minor leagues in 1990, with the Bristol Tigers, where he hit .164 in 25 games. When he returned to the diamond after his one-year absence, he did much better, hitting .306 in 27 games for the Niagara Falls Rapids of the New York-Penn League. He only played 36 games in 1993, with the Lakeland Tigers of the Florida State League, but by the end of 1995, he was playing in the major leagues, after a 23-homer season in 1994 and in spite of hitting only .242 with 14 homers in his first full season in AAA with the Toledo Mud Hens.
He holds the all-time record for the most time zones with a home run. He is the only player with six, having homered in Puerto Rico in 2003, and Japan in 2004, after earlier homering in the main four USA zones.
He missed 102 games in 2000 because of injuries to his rib cage and lower back. In only 60 at-bats in June that season, he hit .350 with 8 home runs and 21 RBI.
After retiring from the game, he became active in the Major League Baseball Players Association in 2010 as director of player relations. He had been a player representative for many years while playing in the big leagues and was already familiar with union business. He was named deputy to executive director Michael Weiner when he was struck by brain cancer in July of 2013, and replaced him on an interim basis after his passing on November 21, 2013. On December 3rd, he was confirmed in the position of executive director, although his nomination still needed to be ratified by a vote of the membership. A few days later, he named Hall of Famer Dave Winfield as his deputy. In November 2018, his contract was renewed until 2022.
- 1996 Topps All-Star Rookie Team
- AL All-Star (2001)
- 20-Home Run Seasons: 5 (1996-1999 & 2005)
- 30-Home Run Seasons: 4 (1997-1999 & 2005)
- 100 RBI Seasons: 2 (1997 & 1998)
- 100 Run Scored Seasons: 1 (1997)
- Tracy Ringolsby: "From early on, union head Clark destined to lead: Ex-big leaguer seized baseball opportunity after injury ended basketball career", mlb.com, March 11, 2014. 
- Paul White: "New union chief Tony Clark talks replays, collisions, PEDs", USA Today Sports, February 21, 2014.