David Jack Mayfield (born September 30, 1990) is an American professional baseball infielder for the Toros de Tijuana of the Mexican League.

In 2019, he opened the season with the Round Rock Express,[5] hitting .287/.350/.566/.916 with 26 home runs and 79 RBI.

[8][9] On February 24, 2021, Mayfield was designated for assignment by the Braves following the waiver claim of Guillermo Heredia.

[17] On August 30, Mayfield hit his first career grand slam off of New York Yankees starter Corey Kluber.

[18] Appearing in 73 games for the Angels, Mayfield hit .227/.285/.419 with career-highs in home runs (10) and RBI (36).

[20] In 54 games for Triple-A Salt Lake, Mayfield had better numbers, with a .247/.292/.417 slash to go along with 6 home runs and 31 RBI.

[23] Mayfield made 69 appearances for Tijuana in 2024, batting .302/.365/.437 with five home runs, 30 RBI, and three stolen bases.