Paul Crossan is an Irish radio personality. He was born in Drimnagh, Dublin, grew up in Crumlin, and attended Drimnagh Castle Secondary School and University College Dublin. He has been a presenter on RTÉ 2fm since 2001. O'Shea also presented The Poetry Programme on RTÉ Radio 1 in 2015 and 2016. Since 2017 he has been presenting the morning show on RTÉ Gold. He has presented The Book Show on RTÉ Radio 1 since 2019.

Drimnagh is a suburb in Dublin, Ireland to the south of the city between Walkinstown, Crumlin and Inchicore, bordered by the Grand Canal to the north and east. Drimnagh is in postal district Dublin 12.