Please find below links to Welsh writers with surnames beginning with M and N:
M
- Arthur Machen (1863 – 1947, E), supernatural, fantasy, and horror fiction
- John Maddox (1925 – 2009, E), theoretical chemist, turned physicist
- Hazel Manuel (1967, E), novelist
- Sean Mathias (1956, E), theatre director
- Paul McGrane (1962, E), poet
- Steph McNicholas (1965, E), journalist
- Kathy Miles, E, poet and editor
- Thorne Moore (1954, E), novelist
- Elaine Morgan (1920–2013, E), playwright and non-fiction writer
- Iolo Morganwg (1747–1826, EW), antiquarian, poet and literary forger
- Jan Morris (1926–2020, E), historian, travel, journalist
Kathy Miles – poet
N
- Terry Nation (1930–1997, E), TV scriptwriter
- Nennius (fl. 9th century, L), chronicler and monk
- Mary Edith Nepean (1876 – 1960, EW), novelist
- Helen Noble (1967, E), crime writer
- Leslie Norris (1921–2006, E), poet and short story writer
- Arianwen Nunn (1958, E), novelist