Ó Sé is a surname of Irish origin. People with name include:
Dáithí Ó Sé, Irish television personality Darragh Ó Sé, Irish sportsman Maidhc Dainín Ó Sé, Irish language writer and musician Marc Ó Sé, Irish sportsman Mícheál Ó Sé, Irish sportsman Páidí Ó Sé (1955–2012), Irish footballer Seán Ó Sé (1936–2026), Irish tenor singer Tomás Ó Sé, Irish sportsman
See also
O'Shea or O Shea – common anglicisations of this Irish surname