Brian Farrell may refer to:

Brian Farrell (broadcaster) (1929–2014), Irish author, journalist, academic and broadcaster Brian Farrell (Gaelic footballer), Gaelic footballer from County Meath, Ireland Brian Farrell (ice hockey) (born 1972), retired American ice hockey player Brian Farrell (bishop) (born 1944), Roman Catholic bishop Brian D. Farrell, professor of biology and curator in entomology Brian Farrell (lacrosse) (born 1988), lacrosse player