Joselyn is a Spanish-flavored spelling of Jocelyn, a name the Normans brought to England from the Germanic Gauzelin, which referred to a "member of the Gauts" tribe; today it is often linked to the word joyous and glossed as "joyful". The spelling is favored in Hispanic American families. Joselyn ranked number 650 in 2000, peaked at number 221 in 2007, left the top 1000 in 2019 and holds number 1504 in 2025.