Catie is of American origin, a shortened form of Catherine, meaning 'pure'. It has gained popularity as an independent given name since the mid-20th century.
"The name Catie has seen a significant rise and fall in popularity over the years, with its peak being in 1984 when there were 27 births, and a decline to as low as 6 births in both 2017 and 2018. Overall, there have been 1020 babies named Catie from 1971 to 2023."