- Kåve Pour
- Kārlis Putāns
- Kévin Aubeneau
- K.C. Bornkesell
- Kaela Bahrey
- Kaela Pflumm
- Kaesi Belen Soto
- Kahley Cuff
- Kai Müller
- Kait Raymond
- Kaitlin Howell
- Kaitlin Kubiak
- Kaitlyn Bouchard
- Kaitlyn Hooper
- Kaitlyn Melton
- Kaitlyn Weaver
- Kaitlyn Williams
- Kaleigh Krish
- Kallum Higginbotham
- Kanan Hooker
- Kanata Hongô
- Kane Ritchotte
- Kang Dongyun
- Kara Borden
- Kara Connolly
- Kara Crane
- Kara Dupell
- Kara Pacitto
- Karen Sandoval
- Karin Bogaeus
- Karina Sinding Johnson
- Karle Carder-Andrews
- Karle Warren
- Karolin Dubberstein
- Karolina Sawka
- Kasia Zurawik
- Kasie Fagan
- Kassie Hight
- Kasumi Suzuki
- Kat Wright
- Katarina Ekholm
- Katarina Gerboldt
- Katarzyna Pypno
- Kate Tucci
- Kate Whitaker
- Katelyn Pacitto
- Katelyn Tarver
- Katharina Hoffmann
- Katharina Ursinus
- Katharina Wien
- Katherine Hayes
- Katherine Micheaux Miller
- Katherine Rose Riley
- Kathleen Herles
- Kathleen Hersey
- Kathrine Bogø
- Kathy Castro
- Katia Kochranko
- Katia Miersch
- Katie Edwards
- Katie Hagan
- Katie Hoff
- Katie Keating
- Katie Lai
- Katie Lee Harper
- Katie Morrow
- Katie Neil
- Katie Pierce
- Katie Sagona
- Katie Volding
- Katja Großkinsky
- Katja Wolf
- Katlin Rivers
- Katrina Gellar
- Katy Taylor
- Katya Baker-Lavine
- Katya Dubakina
- Kay Panabaker
- Kaya Scodelario
- Kayla Stephens
- Kayslee Collins
- Keaton Tyndall
- Keauna McLaughlin
- Keegan Joyce
- Keely Purvis
- Keenan MacWilliam
- Kei Nishikori
- Keiffer Hubbell
- Keir Gilchrist
- Keisha Castle-Hughes
- Keith Watson (footballer)
- Kelci B. Lowry
- Kelii Miyata
- Kellan Rhude
- Kellen Damico
- Kellie Harrison
- Kelly Breeding
- Kelly Casey
- Kelly Nienaltowski
- Kelly Nish
- Kelly Singer
- Kelsey Chow
- Kelsey Collins
- Kelsey Sanders
- Kelsey Schultz
- Kelsi Chartrand
- Kemal Cingirt
- Ken Punzalan
- Kendall Schmidt
- Kendre Berry
- Kennedy Igboananike
- Kenny Baumann
- Kenny Guay
- Kenshō Ono
- Kent Simpson
- Kent Wolkowski
- Kermit Erasmus
- Kevin Barrette
- Kevin Covais
- Kevin Douglas Coleman
- Kevin Graves
- Kevin Köppe
- Kevin Olson
- Kevin Peracini
- Kevin Renteria
- Kevin Reynolds (figure skater)
- Kevin Roberts (footballer)
- Kevin Russell
- Kevin Wölbert
- Khagendra Thapa Magar
- Khleo Thomas
- Kia Luby
- Kianna Underwood
- Kie Kitano
- Kieran Gibbs
- Kieron Forbes
- Kierstin Koppel
- Kim Barrouk
- Kim Chiu
- Kim Hardt
- Kim Solow
- Kim Taek-Yong
- Kim Yu-Na
- Kimberly Dos Ramos
- Kimberly Mason
- Kimmie Meissner
- Kiran Matharu
- Kirby Bliss Blanton
- Kirby de Jesus
- Kirsten Cassidy
- Kirsten Olson
- Kirsten Prout
- Kirstie Steele
- Kirstine Andersen
- Kit DeZolt
- Klaudia Halejcio
- Ko Ah-seong
- Konrad Baumann
- Konrad Miller
- Konstantin Königsbauer
- Konstantin Moser
- Konstantinos Vrotsos
- Krakk
- Krišs Vilerts
- Kris Bernal
- Kris Renton
- Kristýna Martínková
- Kristína Kabátová
- Kristaps Bričs
- Kristaps Doniks
- Kristen Alderson
- Kristen Hooper
- Kristen Nicole La Prade
- Kristen Reshes
- Kristen Stewart
- Kristian Junegard
- Kristin Bohm
- Kristin Herrera
- Kristin Klabunde
- Kristin Quick
- Kristin Tetz
- Kristina Adamcová
- Kristina Gorshkova
- Kristina Jurcevic
- Kristina Malota
- Kristine Beuerleine
- Kristine Wilson
- Kristy Landers
- Krisztián Németh
- Krisztina Rátonyi
- Krizia Vega
- Krystal Benn
- Krystian Pearce
- Ksenia Doronina
- Ksenia Krasilnikova
- Kurt Sutherland
- Kwame Boateng
- Kyōsuke Ikeda
- Kyle Alcazar
- Kyle Beach
- Kyle Brown
- Kyle Carpenter
- Kyle Casey
- Kyle Chambers
- Kyle Clancy
- Kyle Hendry
- Kyle Herrera
- Kyle Jeffrey
- Kyle Kaplan