Mark Edward Wohlers (born January 23, 1970) is an American former professional baseball pitcher.

A right-hander, he played all or parts of 12 seasons in Major League Baseball, exclusively as a relief pitcher.

Wohlers committed to play college baseball for the Maine Black Bears before graduating from Holyoke High School in 1988.

The Atlanta faithful, although frustrated with Wohlers' seemingly constant fastballs to the backstop or behind batters, rallied behind the embattled pitcher and would fervently cheer him on whenever he was in the game.

After being recalled from Richmond, he entered a game and recorded a strikeout, his first in months, and received a rousing standing ovation from the crowd at Turner Field.

While undergoing treatment for his anxiety, Wohlers had Tommy John surgery on his elbow, which ended his season.

In his first season with the Indians, Wohlers recorded an ERA of 4.79, with seven saves, three wins, four losses, and a much improved walk ratio.

His season ended in the second game of his rehabilitation assignment at Double-A Akron when he ruptured the tendon graft he had had in his elbow in 1999.

Wohlers' first wife, Nancy, filed for divorce in Fulton County Superior Court in July 1998.