Frank Milner CMG (7 November 1875 – 2 December 1944) was a notable New Zealand school principal and educationalist. He was born in Nelson, New Zealand on 7 November 1875. Milner was educated at Nelson College from 1889 to 1892, and at Canterbury College, where he completed his BA in English and Latin in 1895, and his MA with first-class honours in language and literature in 1896. He was to stand in Oamaru for the National Party in the cancelled 1941 general election. His son Ian Milner was later an Australian diplomat and civil servant, and then an academic at Charles University, Prague.