A grimalkin (or greymalkin) is an old or evil-looking female cat.
Grimalkin may also refer to:
The Grimalkin, the 2006 album by Noekk SV Grimalkin, a yacht that competed but failed to finish in the 1979 Fastnet race Grimalkin, a witch assassin in the Spook's series by Joseph Delaney "Grimalkin", a poem by Thomas Lynch Grimalkin, the 1811 winner of the Doncaster Cup horse race Grimalkin, a comic strip by Louis Wain Grimalkin, a cat in the book "King of the Wind" by Marguerite Henry (1948) The Grimalkin is a malk in The Dresden Files; a species of feline fae allied with the Winter court, about the size of a bobcat, but stronger, faster and smarter than most humans. Grimalkin, a record label and nonprofit organization (and an official internship employer for students of VCUarts Kinetic Imaging department) based in Richmond, Virginia
Graymalkin may refer to: the familiar, presumably a cat, of one of the three witches in Shakespeare's Macbeth Graymalkin, a fictional character in the X-Men series of comics Graymalkin Industries, a front for X-Men activities in comics Graymalkin, a space station dismantled and used as material for the island of Providence in Marvel comics Graymalkin, a demonic cat in the 1957 British film Curse of the Demon