Kaylee is a modern English given name, most often for females. It is a combination of the name elements Kay and Lee. The name has various spellings, including Kailee, and has been popular in the United States, particularly in the late 20th and early 21st centuries. It reached its peak popularity in 2009, ranking 26th among the most popular names for newborn girls. Although its popularity has declined since then, it remained among the top 200 names for American girls in 2023.