| Name | Date | Month | Icon | Bios |
| MAGDALINI (1) (Magdalena, Magdalene, Magdalini, Markella, Magda) | 19 | May | | |
| MAGDALINI (2) (Magdalena, Magdalene, Magdalini, Markella, Magda) | 22 | July | | |
| MAGNOS (Magnos) | 28 | April | | |
| MAGOS (Magos, Maya) | 31 | May | | |
| MAIAS (Maias) | 0 | not known | | |
| MAKAR (Makar) | 0 | not known | | |
| MAKARIOS (Makarios) | 19 | January | | |
| MAKARIOS (Makarios) | 26 | June | | |
| MAKEDON (Makedon) | 27 | March | | |
| MAKRINA (Makrena) | 19 | July | | |
| MALAMATI (1) (Malamati, Mala, Malamatenia, Matina) | 23 | August |  |  |
| MALAMATI (2) (Malamati, Mala, Malamatenia, Matina) | 30 | April | |  |
| MAMAS (Mamas) | 2 | September | | |
| MANDO (Mando, Mandi, Manto) | 1 | September |  |  |
| MANTHOS (Manthos) | 0 | not known | | |
| MANTIAS (Mantias, Mandias) | 0 | not known | | |
| MANTIOS (Mantios, Mandios) | 0 | not known | | |
| MARGARET (1) (Margarita) | 1 | September |  |  |
| MARGARET (2) (Margarita) | 25 | January | | |
| MARIANNA (Mariana) | 28 | February | | |
| MARIANTHI (Marianthe) | 1 | September |  |  |
| MARIETA (Marietta, Margeta, Margetina) | 15 | August | | |
| MARILIA (Marilia, Marie Sol , Maria Sole) | 0 | not known | | |
| MARINA (Marena, Marinos) | 17 | July | | |
| MARINIKI (Mariniki) | 15 | August | | |
| MARINOS (1) (Marinos) | 2 | June | | |
| MARINOS (2) (Marinos) | 18 | October | | |
| MARIOS (Marios) | 13 | March | | |
| MARKELLA (Markela) | 22 | July | | |
| MARKELOS (1) (Markelos) | 9 | February | | |
| MARKELOS (2) (Markelos) | 1 | August | | |
| MARKIANI (Markiani) | 24 | May | | |
| MARKIANOS (Markianos) | 30 | October | | |
| MARKOS (*) (Markos, Mark, Marcos) | 25 | April |  |  |
| MAROULA (Maroula) | 0 | not known | | |
| MARSYAS (Marsyas) | 0 | not known | | |
| MARTHA (Martha) | 4 | June | | |
| MARY (Maria - for married women, Mary, Maro, Marios, Mario, Mariori, Marika, Maroula, Maritsa, Margiori, Marigoula, Manio, Marietta, Marousa, Marsia, Marcy, Dena) | 15 | August | | |
| MARY (Maria - for unmarried women, Mary, Maro, Marios, Mario, Mariori, Marika, Maroula, Maritsa, Margiori, Marigoula, Marietta, Marousa, Marsia, Marcy, Dena) | 21 | November |  |  |
| MARYLENA (Marylena, Maryelena) | 22 | July | | |
|
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| MARYLENA (Marylena, Maryelena) | 19 | May | | |
| MATHAIOS (Mathaios, Matthaios, Matthias, Mathew, Matthew) | 16 | November |  |  |
| MATHILDE (Mathilde, Matilda) | 14 | March | | |
| MATINA (Matina) | 8 | November | | |
| MATRONA (1) (Matrona of Thessaloniki - Thessalonica) | 27 | March |  |  |
| MATRONA (2) (Matrona of Chios - Chiopolitissa) | 20 | October |  |  |
| MATRONA (3) (Matrona of Russia - The Blind) | 2 | May |  |  |
| MAVRA (Mavra) | 9 | November | | |
| MAVRIKIOS (1) (Mavrikios, Maurice) | 27 | December | | |
| MAVRIKIOS (2) (Mavrikios, Maurice) | 1 | July | | |
| MAVROS (Mavros, Mavreta) | 30 | January | | |
| MAXIMILIAN (Maximilian) | 4 | August |  |  |
| MAXIMOS (1) (Maximos, Massimos) | 21 | January | | |
| MAXIMOS (2) (Maximos, Massimos) | 10 | April | | |
| MAXIMOS (3) (Maximos, Massimos, Maximus, Maximian) | 17 | November |  |  |
| MEAT FARE THURSDAY (*) (Meat Fare Thursday) | 20 | February | | |
| MEGAKLIS (Megaklis) | 0 | not known | | |
| MEGALI DEYTERA (*) (Megali Deytera) | 14 | April | | |
| MEGALI PARASKEYI (*) (Megali Paraskeyi) | 18 | April | | |
| MEGALI PEMPTI (*) (Megali Pempti) | 17 | April | | |
| MEGALI TETARTI (*) (Megali Tetarti) | 16 | April | | |
| MEGALI TRITI (*) (Megali Triti) | 15 | April | | |
| MEGALO SABBATO (*) (Megalo Sabbato) | 19 | April | | |
| MEGALOSTRATI (Megalostrati) | 0 | not known | | |
| MEGARI (Megari) | 0 | not known | | |
| MEGAS (Megas) | 0 | not known | | |
| MEGASTHENIS (Megasthenis) | 0 | not known | | |
| MEGISTIAS (Megistias) | 0 | not known | | |
| MELAMBOUS (Melambous) | 0 | not known | | |
| MELANIPPIDIS (Melanippidis) | 0 | not known | | |
| MELANTHIOS (Melanthios) | 0 | not known | | |
| MELANTHO (Melantho) | 0 | not known | | |
| MELANY (Melania, Melany, Melanie) | 31 | December | | |
| MELEAGROS (Meleagros) | 0 | not known | | |
| MELETIOS (1) (Meletios, Meletis) | 12 | February | | |
| MELETIOS (2) (Meletios, Meletis) | 1 | September | | |
| MELHIOR (Melhior) | 25 | December | | |
| MELHISEDEH (*) (Melhisedeh, Melchizedek) | 14 | December |  |  |
| MELIA (Melia) | 4 | May | | |
| MELIKERTI (Melikerti) | 0 | not known | | |
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| MELINA (1) (Melina, Melitini, Melitina) | 16 | September | | |
| MELINA (2) (Melina, Melitini, Melitina) | 29 | October | | |
| MELIOS (Melios, Milios, Melio, Milio) | 8 | May | | |
| MELISIAS (Melisias) | 0 | not known | | |
| MELISSOS (Melissos) | 0 | not known | | |
| MELITON (Meliton) | 30 | June | | |
| MELPOMENI (Melpmene) | 1 | September |  |  |
| MEMORY OF GREEK PONTIOS GENOCIDE (Memory of Greek Pontios Genocide) | 19 | May | | |
| Memory of the Defeat of Kostantinoupolis by the Turks in 1453 | 29 | May | | |
| MEMOS (Memos, Mema, Mehmet) | 0 | not known | | |
| MENANDROS (Menandros) | 19 | May | | |
| MENEDIMOS (Menedimos) | 0 | not known | | |
| MENEKALOS (Menekalos) | 0 | not known | | |
| MENEKLIS (Meneklis) | 0 | not known | | |
| MENEKRATIS (Menekratis) | 0 | not known | | |
| MENELAOS (Menelaos, Meneleus, Menelaus, Menele, Mauvier) | 22 | July | | |
| MENIPPOS (Menippos) | 0 | not known | | |
| MENON (Menon) | 0 | not known | | |
| MENTOR (Mentor) | 0 | not known | | |
| MERCURIOS (Merkourios) | 25 | November | | |
| MEROPI (Meropee, Myropee) | 2 | December |  |  |
| MERTIOS (Mertios) | 12 | January | | |
| MESINIDIS (Mesinidis) | 0 | not known | | |
| METAXIA (Metaxia, Taxoula, Metaxenia) | 8 | November | |  |
| METHODIOS (1) (Methodios) | 11 | May | | |
| METHODIOS (2) (Methodius) | 20 | June | |  |
| METON (Meton) | 0 | not known | | |
| MIAOULIS (Miaoulis) | 0 | not known | | |
| MICHAEL (Mixalis, Michail, Michali, Michael) | 8 | November |  |  |
| MICHAEL TAXIARCHIS ARCHANGEL OF MANTAMADOS, LESVOS ISLAND (*) (Taxiarchis Archangel Michael of Mantamados, Lesvos island, Michail) | 4 | May |  |  |
| MICHELLE (Michelle, Michaela, Mikela, Michalia, Mihalia, Michailia, Mihailia) | 8 | November | | |
| MIDEIA (Mideia) | 0 | not known | | |
| MIDEOS (Mideos) | 0 | not known | | |
| MIKON (Mikon) | 0 | not known | | |
| MILON (Milon) | 10 | November | | |
| MILTIADIS (Miltos) | 10 | April |  |  |
| MIMNERMOS (Mimnermos) | 0 | not known | | |
| MINAS (Minas, Minais) | 11 | November |  |  |
| MINODORA (Minodora) | 10 | September | | |
| MINOS (Minos, Mina) | 11 | November | | |
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| MIRANTA (Miranta, Miranda) | 0 | not known | | |
| MIREILLE (Mireille, Mirella, Myrella) | 15 | August | | |
| MIRIONI (Mirioni) | 0 | not known | | |
| MIRON (Myron, Myra, Mirka) | 17 | August | | |
| MIRSINI (Mirsini, Mersa, Mirso, Amerisouda, Amersouda, Amerssa, Amersa) | 24 | September | | |
| MIRTO (Mirto) | 24 | September |  |  |
| MITIS (Mitis) | 0 | not known | | |
| MITON (Miton) | 0 | not known | | |
| MITRODORA (Mitrodora) | 10 | September | | |
| MITRODOROS (Mitrodoros) | 0 | not known | | |
| MITROKLIS (Mitroklis) | 0 | not known | | |
| MNIMOSYNI (Mnimosyni) | 0 | not known | | |
| MNISIKLIS (Mnisiklis) | 0 | not known | | |
| MODESTOS (Modestos) | 16 | December |  |  |
| MONICA (Monika, Monique, Mona) | 15 | June |  |  |
| MORFEAS (Morfeas) | 0 | not known | | |
| MORFOULA (Morfoula) | 6 | August | | |
| MOSES (Moisis, Moses) | 4 | September | | |
| MOSHINA (Moshina) | 0 | not known | | |
| MOSHO (Moshoula) | 1 | September |  |  |
| MOTHER'S DAY (*) (Mother's day) | 11 | May | |  |
| MOUSAIOS (Mousaios) | 0 | not known | | |
| MYGDONIOS (Mygdonios) | 28 | December | | |
| MYKINI (Mykini) | 0 | not known | | |
| MYLLIAS (Myllias) | 0 | not known | | |
| MYNIS (Mynis) | 0 | not known | | |
| MYRINI (Myrini) | 0 | not known | | |
| MYRMIX (Myrmix) | 0 | not known | | |
| MYRNA (Myrna) | 0 | not known | | |
| MYROFORA (*) (Myrofora, Myrrh-Bearing Woman) | 4 | May | | |
| MYRON (Myron, Miron) | 8 | August |  |  |
| MYRTILOS (Myrtilos) | 0 | not known | | |
| MYRTIS (Myrtis) | 0 | not known | | |