Proinsias

Proinsias is a given name. Notable people with the name include:

People

 * Proinsias De Rossa (born 1940), Irish Labour Party politician
 * Proinsias Mac Airt (1922–1992), Irish republican activist
 * Proinsias Mac an Bheatha (1910–1990), Irish language activist and writer
 * Proinsias Mac Aonghusa (1933–2003), Irish journalist, writer, TV presenter, and campaigner
 * Proinsias Mac Cana (1926–2004), academic and Celtic scholar
 * Proinsias Ó Doibhlin (1660–1724), Irish Franciscan friar, poet, and scribe
 * Proinsias Ó Maonaigh (1922–2006), Irish fiddler

Characters

 * Proinsias Cassidy, character from the Preacher comic book series