Otho Orde Dangar (1 February 1842 – 20 September 1923) was an Australian politician.
He was born at Hastings River to storekeeper William Snowdon Dangar and Susan Freethey.
[1] In 1889 Dangar was elected to the New South Wales Legislative Assembly as the Protectionist member for Macleay.
[1][2] He was re-elected at the 1891 election as an Independent Protectionist, in that he supported the Free Trade government of Sir Henry Parkes.
[3] He was forced to resign in 1893 due to financial difficulties, and he was defeated in the subsequent by-election.