Please find below links to Welsh writers with surnames beginning with O and P:
O
- Pixie O’Harris (1903 – 1991, E), artist, illustrator
- John Ormond (1923-1990, E), poet and film maker
- John Osmond (1946, E), journalist, TV producer
- Rhodri Wyn Owen (1962, E), travel writer, novelist
- Robert Owen (1771–1858, E), political writer and social reformer
P
- Richard Parry (1560–1623, EW), Bible translator
- Allison Pearson (1960, E), novelist, columnist and TV critic
- Thomas Pennant (1726 – 1798, E), naturalist, traveller and antiquarian
- Dewi Zephaniah Phillips (1934 – 2006, EW), Wittgensteinian philosophy
- Dean Powell, E, journalist, author, broadcaster
- John Cowper Powys (1872 – 1963, E), philosopher, novelist, literary critic, and poet
- Jen Pritchard, E, historical fiction
- Malcolm Pryce (1960, E), novelist
- Myfanwy Pryce (1890 – 1976, EW), novelist and short story writer
- Richard Price (1723–1791, E), moral philosopher, preacher and pamphleteer
- Philip Pullman (1946, E), novelist