Derek James Mooney is an Irish radio and television presenter, as well as a radio producer. Until January 2015 he presented a weekday afternoon programme called Mooney on RTÉ Radio 1. He is the current executive producer across RTÉ Radio 1's nature and wildlife programming

On television he has often presented game shows and talent contests: his presentation credits include Echo Island, Gridlock, Winning Streak, the ill-fated Cabin Fever, You're a Star, The Big Money Game, Fame: The Musical, The Genealogy Roadshow and Who Knows Ireland Best?. At the end of these shows he uses his trademark farewell.