Professor John Kirowan is a fictional character from Robert E. Howard's contributions to H.P. Lovecraft's story cycle „the Cthulhu Mythos". Kirowan is often partnered with the character John Conrad, to the extent that these stories are often referred to under the group title Conrad & Kirowan. Professor Kirowan is a younger son of a titled Irish family and a scholar of the Mythos who travelled widely in search of forbidden knowledge. His ancestor, Sir Michael Kirowan was a medieval knight famous for killing a particularly fierce and notorious villain, whose ghost Kirowan will meet and escape from.