Lorcan Cranitch (born December 30, 1959) is an Irish actor.

Born in Dublin, Cranitch's first major role on UK television was as Tim Healy in the 1991 BBC drama series, Parnell and the Englishwoman. However, it was as the corrupt DS Beck in Cracker that he became a familiar face to viewers. After being killed off as Beck, he returned to BBC in a part specially written for him, as Sean Dillon in Ballykissangel. Cranitch has appeared in several other UK television dramas, including Deacon Brodie (opposite Billy Connolly), Shackleton (opposite Kenneth Branagh) and Hornblower (opposite Ioan Gruffudd), and in the film, Dancing at Lughnasa. He has also appeared on stage with the Royal Shakespeare Company, and has played George Bernard Shaw on BBC radio.