AOF may stand for:

• Aggregate Objective Function, a single functional to combine all of the objectives in multi-criteria decisioning
• French West Africa (Afrique occidentale française), a group of Francophone countries in West Africa
• The Art of Fugue BWV 1080, a work by Johann Sebastian Bach.
• Alexisonfire a Canadian post-hardcore band
• Articles of Faith (band), a hardcore punk band from Chicago
• Avon Old Farms School, an all-boys boarding high school in Avon, CT
• Art of Fighting, a Japanese video game
• Australian Olympic Federation, a former name of the Australian Olympic Committee
• Academy of Finance, the finance-based high school education program sponsored by the National Academy Foundation.
• American Osteopathic Foundation, the philanthropic arm of the American Osteopathic Association.

Articles of Faith was a Chicago-based hardcore punk band (1981–1985) notable for songwriting in a class above most of their contemporaries (and successors). The band's later work, the In This Life LP in particular, either founds or foreshadows the emo sound. The typical AoF song featured hummable melodies and conspicuous hooks, showing funk, reggae and jazz influences, accompanied by lyrics bemoaning the difficulty of finding freedom and fulfillment in a cookie-cutter mass-consumption driven society typically, but not always, delivered at a searing pace. While the band's influence was blunted by being based in Chicago, it maintained close musical and thematic ties to the Washington DC / Dischord Records scene. Drummer Virus X briefly left the band in 1984, due to the relative waning of the band's political emphasis, but returned to record In This Life. The band split up in 1985, with In This Life being issued two years later. The original line-up reunited for a European tour in 1991. The final show of this tour was recorded and issued as part of the Your Choice Live series.