In general:

• A piece of furniture also called a couch
• SOFA, which stands for Status of Forces Agreement
• SOFA, an abbreviation for the international expositions of Sculpture Objects & Functional Art (SOFA NEW YORK & SOFA CHICAGO)
• SOFA, an abbreviation for Soft Out of Focus Area, and alternative to the term Bokeh
• SOFA score, an acronym for Sequential Organ Failure Assessment score
• SOFA district, a neighbourhood in Chapel Hill, North Carolina.
• Sofa (warrior), a West African warrior of the Mandinka or other related ethnic group
• Susono Overseas Friendship Association, a company in Susono, Japan.
• Status of Forces Agreement, an agreement between a country and a foreign nation stationing military forces in that country.
• Separated over-fire air, a type of burner for low NOx in power stations.

In music:

• Any of four bands of overlapping eras:
• Sofa (Dutch band), a post-indie band active since the late 1990s
• Sofa (American band), a post-grunge funk band active through the 1990s
• Sofa (Canadian band), a Montreal-based band that was active from 1993 to 1997
• Sofa (Thai band), a Thai band active from 2001
• Not to be confused with the band Couch
• "Sofa #1" and "Sofa #2" are tracks on the 1975 album One Size Fits All album by Frank Zappa