Terence Noel O'Brien (23 December 1906 – 19 December 1982) was an English rower, born in Thanet, who competed for Great Britain in the 1928 Summer Olympics. O'Brien was a member of London Rowing Club. In 1927, partnering Robert Nisbet, he won Silver Goblets at Henley Royal Regatta. In 1928 the pair were chosen to compete in the coxless pairs for Great Britain rowing at the 1928 Summer Olympics, where they won the silver medal. At the 1930 British Empire Games he was a member of the English eight which won the gold medal.