Torgrim Castberg (8 September 1874 – 17 June 1928) was a Norwegian violinist.
Torgrim Castberg was born in Skien as the son of customs surveyor and politician Johan Christian Tandberg Castberg (1827–1899) and his wife Hanna Magdalene Frisak Ebbesen (1839–1881).
[3] His paternal grandfather Peter Hersleb Harboe Castberg was a priest and politician.
In addition, Torgrim was a first cousin of sculptor Oscar Ambrosius Castberg.
[3] From 1900 Torgrim Castberg was a concert master in the Bergen Philharmonic Orchestra.