José Carlos Montoyo Díaz (born October 17, 1965) is a Puerto Rican former professional baseball second baseman, manager and coach.

He played in Major League Baseball (MLB) for the Montreal Expos, managed the Toronto Blue Jays and coached for the Tampa Bay Rays and Chicago White Sox.

After leading Princeton to a 39–30 win–loss record in 1997, Montoyo managed the 1998 Short Season-A Hudson Valley Renegades, where he won his first division title.

For the next four years, he served as the manager of Tampa Bay's Double-A clubs, the Orlando Rays (2003) and Montgomery Biscuits (2004–2006), where he won the Southern League championship in 2006.

[5][6] On July 21, 2014, Montoyo surpassed Bill Evers as the Bulls' all-time winningest manager with his 614th victory at the helm of the Rays' Triple-A affiliate.

[8] After guiding the Blue Jays to the playoffs in the 2020 season, Montoyo was nominated for AL Manager of the Year award along with Kevin Cash of the Tampa Bay Rays and Rick Renteria of the Chicago White Sox.

On March 16, 2021, the Blue Jays exercised the fourth-year option on Montoyo's contract, tying him to the team through the 2022 season.

[11] On November 3, 2022, Montoyo was named the bench coach of the Chicago White Sox, under new manager Pedro Grifol.