Baby Names Gender-Neutral Names Meaning of the Name Kail Updated November 9, 2025 by Jennifer M. Kail Gender: Neutral Origin: American Meaning: Slender ♥ Add to my Namelist What is the meaning of the name Kail? The name Kail is primarily a gender-neutral name of American origin that means Slender. form of Cael.People who like the name Kail also like: Mason, Trey, Aiden, Kael, Kaden, Kale, Jace, Olivia, Ella, Sienna, Chloe, Isabella, Kaia, Kira Names like Kail: Kaushal, Kyel, Kaiholo, Kylia, Kelley, Khal, Kacela, Kailey, Keely, Kawelo, Kole, Kolya, Keala, Kalei, Kaliyah, Kikilia, Kylo, Kylee, Kael, Kiele, Kyla, Kualii, Kaleialoha, Kalle, Kal-el, Kahlilia, Kaili, Kalil, Kelli, Keelia Stats for the Name Kail Kail is currently not in the top 100 on the Baby Names Popularity Charts Kail is currently not ranked in U.S. births