| Saint | Background | Date | Feast Day |
| Kanute/Canute | 10/07 19/04 | ||
| Kanute/Canute | King of Denmark | 19/01 | |
| Kanute/Canute Lavard | Duke of Schleswig | 07/01 (Trans 25/06) | |
| Karadocus | priest Brittany | 13/05 | |
| Karentoc | 16/01 | ||
| Kateri Tekakwitha, Blessed | 'Lily of the Mohawks' | 1656-80 | 14/07 |
| Katherine Drexel, Blessed | American missionary | 1858-1955 | 03/03 |
| Kea/Ke/Kay/Kenan/Quay | Bishop of Devon and Cornwall | C5th | 05/11 |
| Kebius | 25/04 | ||
| Keby | Bishop of Caernarvon | 08/11 | |
| Kenan see 'Cianan' | |||
| Kenelm(us) | King of Mercia | 17/07 | |
| Kenneburga | virgin martyr Gloucester | 25/06 | |
| Kennera | virgin martyr | 29/10 | |
| Kenneth see 'Coinneach' + 'Kyned' | |||
| Kennocha/Quevoca/Kevoca | Virgin of Kyle | C7th | 13/03 01/05 |
| Kentigern | 13/02 | ||
| Kentigern/Cyndeyrn/Mung(h)o | Bishop of Glasgow | d612 | 13/01 14/01 |
| Kentigerna | of Loch Lomond sister of Comgan mother of Fillan | 07/01 | |
| Keranus/Caron | Bishop of Tregaron | 05/03 | |
| Kessog/MacKessog | of Lennox Bishop of Loch Lomond Lerin & Boin | 10/03 13/01 | |
| Ketillus | 11/07 | ||
| Keverne | of Cornwall | 18/11 | |
| Kevin see 'Caoimhghin' | |||
| Keyne/Keyna Keyna/Cenau/Cain | dau of St Brychan | C6th | 08/10 |
| Kieran see 'Ciaran' | |||
| Kigwe/Keve/Kew | virgin Monmouthshire | 08/02 | |
| Kilian/Killian see 'Cillian' | |||
| Kineburge/Kinneburga/Cyneburgh + Kineswide/Kineswitha + Tibba/Tibbe of Peterborough | Abbesses of Caistor | C7th | 06/03 |
| Kinemark | 08/09 | ||
| Kinnea/Cinnia | Virgin of Ulster | 01/02 | |
| Kinnera/Canair | Virgin, Isle of Inniscathy | 28/01 | |
| Kliment | of Ohrid | d916 | (Orth) 25/11 |
| Kodratos | of Corinth | 10/03 | |
| Kozma | of Zograph Mt. Athos | d1323 | (Orth) 22/09 |
| Kunegunda/Kinga | wife of Boleslaus V of Poland & nun | 1224-92 | 24/06, (24/07) |
| Kuniald/Cuniald + Gislarius/Gisar | 24/09 | ||
| Kyned/Kenneth/Cynedd | of Gower | C6th | 01/08 |
| Kyprianos/Tsamblak | Metropolitan of Kiev & Moscow | 1389-1406 | (Orth) 16/09 |
| Kywere | Abbess | C5th | 08/02 |
This collection of names was compiled by Kate Monk and is ©1997, Kate Monk.
Copies may be made for personal use only.