Richard Martin, Irish activist and politician, co-founded the Royal Society for the Prevention of Cruelty to Animals (d. 1834)

Colonel Richard Martin (15 January 1754 – 6 January 1834), was an Irish politician and campaigner against cruelty to animals. He was known as "Humanity Dick", a nickname bestowed on him by King George IV. He succeeded in getting the pioneering Cruel Treatment of Cattle Act 1822, nicknamed 'Martin's Act', passed into British law.