WGM may refer to:

• Weil, Gotshal & Manges, a law firm based in New York city
• West Glamorgan, preserved county in Wales, Chapman code
• White Girl Mob, an American hip hop group
• Woman Grandmaster, a high-ranking women's chess title
• World Gospel Mission, a Christian missionary agency headquartered in Marion, Indiana
• We Got Married, a South Korean reality show
• Workgroup Manager, a software program bundled as part of Mac OS X Server
• WGM (AM), an Atlanta, Georgia radio station that operated from March 1922 to July 1923