Women tennis players : k
- Kai-Chen Chang
- KAI-LIN ZHANG
- Kaia Kanepi
- Kalinskaya Anna
- Kamenskaya Viktoria
- Kamila Dadakhodjaeva
- Kamilla Farhad
- Kaoru Shibata
- Karen (Barbat) Barritza
- Karen Cross
- Karen-Emelia Castiblanco-Duarte
- Karin Knapp
- Karin Kschwendt
- Karin Lynn Miller
- Karina Andrea Koch Benvenuto
- Karina Habsudova
- Karolina Jagieniak
- Karolina Kosinska
- Karolina Pliskova
- Karolina Sprem
- Katalin Marosi
- Katalin Miskolczi
- Katarina Kachlikova
- Katarina Srebotnik
- Katarina Studenikova
- Katarina Zavatska
- Katarzyna Nowak
- Katarzyna Piter
- Katarzyna Straczy
- Katarzyna Teodorowicz
- Katerina Bohmova
- Katerina Bondarenko
- Katerina Kroupova
- Katerina Maleeva
- Katerina Siniakova
- Katerina Stewart
- Kateryna Kozlova
- Katharina Gerlach
- Katharina Hobgarski
- Kathrin Woerle
- Kathy Rinaldi-Stunkel
- Katie O'Brien
- Katie Schlukebir
- Katie Swan
- Katrina Adams
- Katrina Nimmers
- Katy Dunne
- Kazue Takuma
- Keiko Nagatomi
- Kelly Liggan
- Kelly Mc Cain
- Kerry-Anne Guse
- Khrystyna Antoniychuk
- Kiki Bertens
- Kim Clijsters
- Kim-Anh Nguyen
- Kimberly Birrell
- Kimberly Po
- Kimiko Date-Krumm
- Kinnie Laisne
- Kirrily Sharpe
- Kirsten Flipkens
- Kirsten Flower
- Klaartje Liebens
- Klara Koukalova
- Klaudia Jans
- Komola Umarova
- Korpatsch Tamara
- Kristen Schlukebir
- Kristie Boogert
- Kristie Haerim Ahn
- Kristin Godridge
- Kristina Barrois
- Kristina Brandi
- Kristina Kucova
- Kristina Mladenovic
- Kristina Schmiedlova
- Kristina Triska
- Kristine Kunce
- Kristyna Pliskova
- Ksenia Gaydarzhi
- Ksenia Lykina
- Ksenia Milevskaya
- Ksenia Palkina
- Ksenia Pervak
- Kurumi Nara
- Kveta Peschke
- Kwan Yau NG
- Kyoko Nagatsuka
- Kyra Nagy
- Kyra Shroff
- Kyung-Mi Chang