Richard Barrett may refer to:

People

• Richard Barrett (bishop) (died 1645), Irish bishop
• Richard Barrett (FRS) (fl. 1713), a Fellow of the Royal Society of London
• Riocard Bairéad (Richard Barrett) (1740–1819), poet and schoolmaster from County Mayo, Ireland
• Richard Barrett (abolitionist) (fl. 1840); see World Anti-Slavery Convention
• Richard Barrett (Irish republican) (1889–1922), executed during Irish Civil War
• Richie Barrett (1933–2006), American musician and record producer
• Richard Barrett (Medal of Honor) (1838–1898), American soldier and Indian Campaigns Medal of Honor recipient
• Richard Barrett (lawyer) (1943–2010), American lawyer and white nationalist
• Richard Barrett (author) (born 1945), British author
• Richard Barrett (counter-terrorism expert) (born 1949), coordinator of the United Nations 1267 Monitoring Team
• Richard Barrett (composer) (born 1959), Welsh composer
• Dicky Barrett (born 1964), American musician known as Dicky Barrett
• Richard Boyd Barrett (born 1967), Irish political activist and chair of the Irish Anti-War Movement
• Richard Barrett (fl. 1987), playwright; see Griffin Theatre Company

Fictional characters

• Richard Barrett, a character in the 1960s British television series The Champions