Thomas Connellan (c. 1625 – 1698) was an Irish harp player and composer.
Connellan was born about 1625 at Cloonmahon, County Sligo.
Thomas is reputed to have composed between 700 and 800 tunes, although most of these have not survived.
His best-known tunes today are "Molly St. George", "The Dawning of the Day" ("Fáinne Geal an Lae"), also known as "The Golden Star",[2] "Love in Secret", and "Planxty Davis".
"The Dawning of the Day" has similarities with (but is not the same as) the melody used by Irish poet Patrick Kavanagh for his poem On Raglan Road.