OPM is the first ever compilation album by Filipino singer Sarah Geronimo, released on December 22, 2008 in the Philippines by VIVA Records. It consists of OPM songs that she has released, may it be a single, an album track or a soundtrack. In 2010, it has been certified Platinum by the Philippine Association of the Record Industry, selling 25,000 copies in the country.

Credits were taken from Titik Pilipino.^[1]

• ACNE (at Homme et Femme) - black dress
• Paul Basinillo - creative director
• Grace Castaneda - creative team, digital imaging
• Comme De Garcon - black and white dress
• Vic Del Rosario, Jr. - executive producer
• Vincent Del Rosario - executive producer
• Denim, Inc. - album concept and design, creative team
• Dittle - creative team, illustrations
• Sarah Geronimo - lead vocals
• Baby A. Gil - supervising producer
• Guia Gil-Ferrer - associate producer
• Mia Marigomen - creative team
• Joel Mendoza - recording, mixing and mastering
• Joy Mongado - creative team, digital imaging
• MG O. Mozo - A&R direction
• Tony Ocampo - executive producer
• Eric Pe Benito - styling
• Ronnie Salvacion - photography
• Cary Santiago - black and white gown
• Juan Sarte - hair and make-up