Kinzlee is a creative spelling of Kinsley, an English surname and place name that is usually explained as "king's meadow" or "Cyne's clearing", from Old English leah, a clearing. The z and the double e mark it as a 21st-century American form, in line with Kinzley and Kynslee. Kinzlee had fewer than five births in 2000, rose quickly with Kinsley's boom, peaked at number 1617 in 2016 and has settled to number 2473 in 2025 with 72 girls.