Francis Xavier O'Meara, known as Frank O'Meara, is an Irish songwriter from Mullingar, best known for the song "Grace", which he wrote in 1985 with his brother, Séan O'Meara. The song was covered by both Irish and international artists, and is about the artist Grace Gifford and her marriage to Joseph Plunkett hours before his execution. The lyrics were written by Séan and the melody composed by Frank.