Jhan Carlos Mariñez Fuente (pronounced "Yan MArin-yez") (born August 12, 1988) is a Dominican professional baseball pitcher for the Conspiradores de Querétaro of the Mexican League.

He has previously played in Major League Baseball (MLB) for the Florida Marlins, Chicago White Sox, Tampa Bay Rays, Milwaukee Brewers, Pittsburgh Pirates, Texas Rangers, and Baltimore Orioles.

Mariñez signed a minor league deal with the Detroit Tigers on November 18, 2013 and was assigned to the Triple–A Toledo Mud Hens.

[citation needed] On December 31, 2014, he signed a minor league contract with the Tampa Bay Rays.

He made his Brewers debut on May 22, coming in relief of Chase Anderson, facing the New York Mets.

[9] On April 3, 2019, Mariñez signed with the Diablos Rojos del México of the Mexican League.

[11] However, prior to the 2022 LMB season, on March 8, his contract was purchased by the Chicago White Sox organization.