Thomas Robert Moxham (1 April 1860 – 11 January 1916) was an Australian politician.
He was born in Parramatta to storekeeper Robert Henry Moxham and Martha Dick.
He attended the local All Saints denominational school before joining his brother William in a quarrying business.
In 1901 he was elected to the New South Wales Legislative Assembly as the member for Parramatta, representing the Liberal Party.
Succeeding John Nobbs from Granville he was party whip from 1913 until his death at Parramatta in 1916.