ARMM may refer to:

• Autonomous Region in Muslim Mindanao, an administrative division of the Philippines
• ARMM (Usenet), Automated Retroactive Minimal Moderation, a program to aid in the control of Usenet abuse

• Five Hundred Most Commonly Used Chinese Characters
• Five Hundred Pounds
• Five Hundred Years After
• Five in a row
• Five In A Row
• Five in a Row (song)
• Five inch Friday
• Five inch friday
• Five-inch gun
• Five Intersecting Tetrahedra
• Five in the Black
• Five in the Black (Tohoshinki album)
• Five Iron Frenzy LIVE: Proof That the Youth Are Revolting
• Five Islands
• Five islands
• Five Islands, Australia
• Five Japanese kings
• Five Jinas
• Five Joyful Mysteries
• Five joys
• Five-key flute
• Five kinds of silence
• Five Kinds of Silence
• Five-kingdom
• Five kingdom system