Frank Yates Lethbridge was an independent conservative Member of Parliament in New Zealand, representing first the Rangitikei electorate from 1896 to 1902, and then the Oroua electorate from 1902 to 1908.
Lethbridge was born on May 22, 1852, in New Plymouth. He was educated in Nelson and Christchurch, and worked on his father's farm after leaving school. He settled in Feilding in 1876, and undertook the management of a 7000 acre estate, which would later be used for a racing track, golf links, polo grounds, and cricket and football club grounds. In 1879, Lethbridge married his cousin Clara Lethbridge in Turakina, and they had three daughters together.
Lethbridge was heavily involved in the Manchester Block community, even before his foray into politics. He was a member of several local bodies, including the Jockey Club, the Polo Club, and the Horticultural Society. He was a lieutenant in the Militia, and captain of the Manchester Rifles for several years, commanding the Rifles at Parihaka. He was also a member of the Masonic Fraternity, and held the rank of Post Master.
Lethbridge died on the 26 January, 1915, after a long illness.