Kaer
De gules, a la croix d'hermine gringolée d'or.

* Kaye
Gold semied with flowers gentil, a sengreen in chief over the heads of two whole serpents in pale, their tails knotted together (all in proper colour) resting upon a square marble-stone vert, between these a book sable garnisht gules buckled gold.
Dr John Kaye, temp. Mary

Keate
Argent, three mountain-cats passant in pale sable.

Kelverdon
Gules, a pall reversed ermine.

Kettler
Argent, a hanger [or kettle-iron] expanded gules.

Kidder
Argent, a saltire sounter embattled sable.
Richard Kidder, 1691

King's Lynn
Azure, three conger-eel's heads erased and erect Or, in the mouth of each a cross crosslet fitchée of the last.

Kirby
Azure, six lions rampant argent; on a canton Or a mullet gules.

Knight
Vert, a bend fusil Or.

Knowles
Azure, crusilly a cross sarcelly disjoined Or.
Knowles, 1632