Douglas Keith Brocail (born May 16, 1967) is an American professional baseball pitcher and pitching coach.

He played in Major League Baseball (MLB) for the San Diego Padres, Houston Astros, Detroit Tigers, and Texas Rangers.

After the 1994 season, the Padres traded Brocail, Derek Bell, Ricky Gutiérrez, Pedro Martínez, Phil Plantier, and Craig Shipley to the Houston Astros for Ken Caminiti, Andújar Cedeño, Steve Finley, Roberto Petagine, and Brian Williams.

[3] After the 2000 season, the Tigers traded Brocail, Ausmus, and Nelson Cruz to the Astros for Roger Cedeño, Chris Holt, and Mitch Meluskey.

[5] Weeks later, Brocail underwent a second, more complex angioplasty in which he received three stents in his heart in addition to the one put in prior.

[12] On September 13, 2004, Brocail was involved in an incident at the McAfee Coliseum, when the Texas Rangers were playing the Oakland Athletics.