Anime Series Beginning with M
- Maria-sama ga miteru
- Marie & Gali
- Marmalade Boy
- Marquee
- MARS RED
- Martian Successor Nadesico
- Marumo no Okite
- Marvel Comics character
- Mary and the Witch's Flower
- Masamune-kun's Revenge
- Mashin Hero Wataru
- Mashin Sentai Kiramager
- Mashiro no Oto
- Mashiroiro Symphony
- MASHLE
- Masshiro
- Master Keaton
- Masterarchive Mobilesuit
- Matantei Loki RAGNAROK
- Matrix
- Matsuyama Aoi Monogatari
- Mawaru-Penguindrum
- Mayochiki!
- Mayoi Neko Over Run!
- Mayoiga
- Mayonaka Idol! Mosatune
- MAZE Mega Burst Space
- Mazinger Series
- Mazinkaizer
- MdN
- Medakabox
- MEDAROT
- Meet the Robinsons
- Mega Man series (Rockman)
- Megalobox
- Megami Kouhosei
- Megami Magazine
- Megami Meguri
- Megami ryo no Ryobo-kun.
- Megami Tensei
- Megane no Kanojo
- Meganebu!
- Megazone 23
- Mei-chan no Shitsuji
- Meido Deka
- Meiji Tokyo Renka
- Meikyu Black Company
- Meitantei Holmes
- MELTYLANCER
- Memories
- Memories Off
- Men's Non-No
- MERC STORIA
- Mermaid Melody Pichi Pichi Pitch
- Metal Gear Solid
- Metallic Rouge
- Mewkledreamy
- MEZZO
- MF Ghost
- Micchaku CD Series
- Michiko to Hacchin
- Midara na Ao-chan wa Benkyo ga Dekinai
- Midnight Detective -Night Walker-
- Midnight Occult Civil Servants
- Midori no Hibi
- Mieruko-chan
- Miffiy
- Migawari Hakushaku Series
- Migi to Dali
- Mikagura Gakuen Kumikyoku
- Mikakunin de Shinkokei
- Mikarun X
- Million Doll
- Mimankeisatsu Midnight runner
- Mina
- Minami Kamakura High School Girls Cycling Club
- Minamike
- Minarai Diva
- Minions
- Minky Momo
- Minna no Uta
- Minori Scramble
- Minuscule
- Miracle Train
- Miracle! Mimika Number One
- Mirai Keisatsu Urashiman (Future Police)
- Mirai no Mirai(Mirai of the Future)
- Mirai Shonen Conan (Future Boy Conan)
- Misaki No Mayoiga
- Miscast
- Miss Monochrome
- Missing Blue
- Mission-E
- Mission: Yozakura family
- Mitokoumon
- Mitsubachi Shuppan Series
- Mitsuboshi Colors
- Mitsudomoe
- MIX
- Miyuki