Baby Names Gender-Neutral Names Meaning of the Name Kail Updated February 10, 2026 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: Kaden, Kale, Aiden, Jace, Trey, Mason, Kael, Kira, Sienna, Olivia, Ella, Kaia, Isabella, Chloe Names like Kail: Kelaiah, Kalea, Keala, Kailey, Kylee, Kaushal, Kacela, Kylie, Kalila, Kahula, Kalle, Kahale, Kali, Kahlilia, Kaley, Keola, Kielo, Kaylee, Kaleo, Kale, Khaleel, Kualii, Kylia, Kalil, Kelii, Koala, Khal, Kaleho, Kesley, Kalayah 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