Brian Donnelly may refer to:
Brian Donnelly (hurler) (born 1961), Irish retired hurler Brian Donnelly (New Zealand politician) (1949–2008), member of the New Zealand First party Brian Donnelly (British diplomat), retired United Kingdom diplomat Brian J. Donnelly (1946–2023), U.S. Representative from Massachusetts, 1979–1993 Bryan Donnelly (rower) (born 1975), Canadian Olympic rower Kaws (Brian Donnelly, born 1974), American artist and designer