- William Hamilton: See William Hamilton Canaway.
- James Hanley (Patric Shone)
- Place of Birth: Dublin
- Dates: 1901-1985
- Drift (1930)
- The German Prisoner (1930)
- The Last Voyage (1931)
- Boy (1932)
- Ebb And Flood (1932)
- Captain Bottell (1933)
- Resurrexit Dominus (1934)
- The Furys (1935)
- Stoker Bush (1935)
- The Secret Journey (1936)
- Hollow Sea (1938)
- Our Time is Gone (1940)
- The Ocean (1941)
- No Directions (1943)
- Sailor’s Song (1943)
- Emily (1948)
- Winter Song (1950)
- The Closed Harbour (1953)
- Don Quixote Drowned (1953)
- The Welsh Sonata (1954)
- Levine (1956)
- A Winter Journey (1958)
- End and a Beginning (1958)
- Say Nothing (1962)
- The Inner World of Miss Vaughan (1964)
- Another World (1971)
- A Woman in the Sky (1973)
- Dream Journey (1976)
- A Kingdom (1978)
- Julia Ann Hatton (Ann of Swansea)
- Place of Birth: Worcester
- Dates: 1764-1838
- Poems on Miscellaneous Subjects (1783)
- Zaffine, or, The Knight of the Bloody Cross (1810)
- Poetic Trifles (1811)
- Cambrian Pictures (1811)
- Chronicles of an Illustrious House (5 vol.) (1814)
- Anna Haycraft (Alice Thomas Ellis)
- Place of Birth: Liverpool
- Dates: 1932-
- The Sin Eater (1977)
- The Birds of the Air (1980)
- The 27th Kingdom (1982)
- The Other Side of the Fire (1983)
- Unexplained Laughter (1985)
- John Hereford: See Harry Lutf Vern Fletcher.
- Nigel Heseltine
- Place of Birth: Montgomeryshire
- Dates: 1916-
- The Four-walled Dream (1941)
- Dafydd ap Gwilym (1944)
- Tales of the Squirearchy (1946)
- Florence Howell
- Place of Birth: Whalecwm, Cosheston, Pembrokeshire
- Dates: 1869-1946
- Stories at the Mill (1969)
- Jane Wogan (????)
- Castle Garth (????)
- A Woman of Compassion (????)
- The Thirteenth of March (????)
- The Sentence (????)
- Pembroke Castle (????)
- Annie Harriet Hughes (Gwenyth Vaughan)
- Place of Birth: Telsarnau, Merionethshire
- Dates: 1852-1910
- Yr Haul (serial) (1903-1904)
- Cymro (serial) (1903-1906)
- O Gorlannau y Defaid (1905)
- Brython (serial) (1907-1909)
- Plaut y Gorthrwm (1908)
- Beti Hughes
- Place of Birth: St. Clears, Carmarthenshire
- Dates: 1926-1981
- Wyth Esgyd Du (1962)
- Dwy Chwaer (1963)
- Adar o’r Unlliw (1964)
- Carchar Hyfrid (1965)
- Wyth Pabell Wen (1966)
- Genethod Abergwylan (1967)
- Hufen Amser (1968)
- Wyth Olwyn Felen (1969)
- Aderyn o Ddyfed (1971)
- Pontio o’r Pellter (1981)
- Cledwyn Hughes
- Place of Birth: Llansantffraid, Montgomeryshire
- Dates: 1920-1978
- The Different Drummer (1947)
- The Inn Closes for Christmas (1947)
- Wennon (1948)
- The Civil Strangers (1949)
- A Wanderer in North Wales (1949)
- The King Who Lived on Jelly (1961)
- Portrait of Snowdonia (1967)
- Craigfryn Hughes: See Isaac Hughes.
- Gwilym Thomas Hughes
- Place of Birth: Glyn Ceiriog, Denbighshire
- Dates: 1895-1978
- Y Pren Planedig (1953)
- Ei Seren tan Gwmwl (1955)
- Cyfamod (1960)
- Pan Daêlma (1962)
- Cyffro yn y Cosmos (1966)
- Isaac Hughes (Craigfryn Hughes)
- Place of Birth: Quaker’s Yard, Glamorganshire
- Dates: 1852-1928
- Y Ferch o Gofn Ydfa (1801)
- Y Llofruddiaeth yng Nghoed y Gelli (1893)
- Y Ferch o’r Scer (1882)
- O’r i’r Amdo (1903)
- John Lewis Hughes
- Place of Birth: Pontypridd, Glamorganshire
- Dates: 1938-
- The Alphabet (1968)
- Tom Jones Slept Here (1971)
- Before the Crying Ends (1977)
- Shifts (1978)
- Death in Custody (1982)
- Total Allergy (1983)
- Richard Hughes
- Place of Birth: Weybridge, Surrey
- Dates: 1900-1976
- The Sisters’ Tragedy (1922)
- A Comedy of Good and Evil (1924)
- Danger (1924)
- Plays (1924)
- Collected Poems (1926)
- A Moment in Time (1926)
- A High Wind in Jamaica (1929)
- In Hazard (1938)
- Fox in the Attic (1961)
- The Wonder Shepherdess (1973)
- The Wonder Drug (1977)
- In the Lap of Atlas (1979)
- Fiction as Truth (1983)
- Richard Cyril Hughes
- Place of Birth: Anglesey
- Dates: 1932-
- Catrin o Forain (1975)
- Dinas Ddihenydd (1976)
- Castell Cyfadd awd (1984)
- Thomas Rowland Hughes
- Place of Birth: Llanberis, Caernarfonshire
- Dates: 1903-1949
- Storïau Mawr y Byd (1936)
- O Law i Law (1943)
- Y Ffordd (1945)
- Chwalfa (1946)
- Cychwyn (1947)
- Cân neu Ddwy (1948)
- Edward Morgan Humphreys (Celt)
- Place of Birth: Dyffryn Ardudwy
- Dates: 1882-1955
- Rhwung Rhyfaloedd (1924)
- Yr Etifedd Coll (1924)
- Y Llaw Gudd (1924)
- Dirgelwch Gallt y Ffrwd (1938)
- Ceulan y Llyn Du (1944)
- The Gorse Glen (1948)
- Gwyr Enwog Gynt (2 vol.) (1950, 1953)
- Llofrudd yn Y Chwarel (1951)
- Emyr Humphreys
- Place of Birth: Prestatyn, Flintshire
- Dates: 1919-
- The Little Kingdom (1946)
- The Voice of the Strangers (1949)
- Hear and Forgive (1952)
- A Man’s Estate (1955)
- A Change of Heart (1957)
- The Italian Wife (1957)
- Toy Epic (1958)
- The Gift (1963)
- Outside the House of Baal (1965)
- Natives (1968)
- Ancestor Worship (1970)
- National Winner (1971)
- Flesh and Blood (1974)
- Landscapes (1976)
- The Best of Friends (1978)
- The Kingdom of Brâm (1979)
- Pwyll a Rhiannon (1980)
- Salt of the Earth (1985)
- Jones (1984)
- James Hanley (Patric Shone)