Daniel Protheroe (5 November 1866 – 25 February 1934), was a Welsh composer and conductor, born at Cwmgiedd, Brecknockshire.

He entered the National Eisteddfod in 1880 and 1881, before his voice broke, winning prizes in both festivals.

There he took courses in music conducting, and was tutored by Parson Price, Dudley Buck and Hugo Karn.

Protheroe remained in Scranton until 1892, and for eight years was the conductor of the Cymmrodorion Choral Society.

He wrote several works, including Arwain Corau (1914) and Nodau Damweiniol a D'rawyd (1924), and in 1918 he edited the hymnal Cân a Mawl for the Calvanistic Methodists of North America.