Reverend Frederick Ledger Frost (1887 – 19 July 1957) was a New Zealand clergyman and politician of the Labour Party.

He enlisted in the army during World War I he was a soldier in the 1st Otago Tunneling Corps, then became a Chaplain-Captain before being wounded in action in 1918.

[2] He was for 14 years a Methodist minister and City Missioner in Auckland initially, but then stationed at Stratford, Dunedin, Edendale, Lyttelton and Tauranga.

[2] Frost stood for New Plymouth unsuccessfully in 1931 and 1935[3] as the Labour Party candidate.

He represented the New Plymouth electorate from the 1938 general election to 1943, when he was defeated by the National candidate, Rev Ernest Aderman, who was also a Christian minister.