Richard Martin or Richard Martyn may refer to:
- Richard Martin (Lord Mayor of London) (died 1617), Master of the Mint and Lord Mayor of London
- Richard Martin (Recorder of London) (1570–1618), lawyer and Recorder of London
- Richard Martin (Irish politician) (1754–1834), (a.k.a. "Humanity Dick"), Irish MP and campaigner against cruelty to animals
- Richard Martin (Mayor of Swansea) (1843–1922), industrialist
- Sir Richard Martin, 1st Baronet, of Cappagh (1831–1901), Anglo-Irish baronet and privy counsellor
- Sir Richard Martin, 1st Baronet, of Overbury Court (1838–1916), English banker and Liberal Party politician
- Rick Martin (South Carolina politician) (born 1967), member of the South Carolina House of Representatives
- Richard Martyn (Mayor of Galway) (c. 1602 – 1648), lawyer and member of the Catholic Confederates of Ireland
- Richard Martyn (New Hampshire politician) (1630–1694), State Representative in 1672 and 1679, and Speaker of the House in 1692