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- (Coffee County) McCarran
- (Colbert County) Majors Place
- (Choctaw County) Manse
- (Ashley County) Marie Camp
- (Chilton County) Marietta
- (Cleburne County) Mark Twain Estates
- (Coffee County) Martin
- (Arkansas County) Massie
- (Colbert County) McGill Junction
- (Blount County) McLeans
- (Choctaw County) Mellan
- (Chambers County) Mendha
- (Ashley County) Middle Boulder Island
- (Ashley County) Middle Point Islands
- (Arkansas County) Middlegate
- (Chilton County) Midway
- (Blount County) Millers
- (Choctaw County) Millett
- (Colbert County) Mineral City
- (Colbert County) Minerva
- (Arkansas County) Miriam
- (Blount County) Montezuma
- (Blount County) Montezuma Wells
- (Choctaw County) Morey
- (Colbert County) Mosier
- (Baxter County) Mottsville
- (Cherokee County) Mound House
- (Boone County) Mount Airy
- (Ashley County) Mountain Springs
- (Ashley County) Mountain's Edge