K
- Kalākaua, King of Hawaii, 1874-91. Lodge Le Progress de l'Oceanie No. 124
- Edmund Kean, English actor
- Alexander Keith, Canadian politician and brewmaster, former Grand Master of Nova Scotia
- Kent, Duke of, see entry above for Prince Edward, Duke of Kent
- Kent, Prince Michael of, see entry below for Prince Michael of Kent
- John J. Kennedy, U.S. and Confederate Army officer, ended Regulator-Moderator War. Marshall Lodge No. 22, Texas.
- Don King (boxing promoter) (1931 - living) American boxing promoter.
- George Frederick Kingston, Archbishop of Nova Scotia and Primate of the Anglican Church in Canada, Ionic Lodge No 25 (Ontario)
- Rudyard Kipling, UK author and poet, Hope and Perseverance Lodge No. 782. E.C., Lahore, India; founding member, The Builders of the Silent Cities Lodge No. 12, Saint-Omer, France,
- Roger Kitter, actor - Member of Chelsea Lodge No. 3098
- Adolph Knigge, German author
- Henry Knox, Major General and Commander of the Continental Artillery during the American War for Independence. He is thought to have been a member of St. John's Regimental Lodge at Morristown. He has been credited with helping to constitute Washington Lodge at West Point. He is listed as a visitor to a number of other lodges.
- Mihail Kogălniceanu Prime Minister of Romania (1863–65), Liberal statesman, lawyer, historian and publicist.
- Otto Kruger, Actor, St. Cecile Lodge No. 568, New York
- Vuk Stefanović Karadžić (1787–1864), Serbian linguist and major reformer of the Serbian language.
Read more about this topic: List Of Freemasons