Baby Names Gender-Neutral Names Meaning of the Name Kail Updated November 5, 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: Kale, Trey, Jace, Kael, Kaden, Aiden, Mason, Chloe, Sienna, Olivia, Isabella, Kaia, Ella, Kira Names like Kail: Kaley, Kacela, Kikilia, Kealii, Kiley, Kelii, Kaeli, Kaleho, Kelly, Kesley, Kelley, Kaliyah, Kyla, Kayley, Kyle, Kella, Kylie, Kylo, Kawelo, Khal, Kiele, Kylia, Kayleah, Kualii, Kahula, Kweli, Kuulei, Kayaliya, Kahale, Keilah 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