Son of Adam
A modern creative spelling of Addison, which originated as an English surname meaning 'son of Adam'. While the suffix '-son' traditionally denotes male lineage, the name transitioned to a popular feminine choice in the late 20th century, with 'Addisynn' adding a contemporary, stylized flair through the use of the letter 'y'.
Fewer than 5 girls were named Addisynn in 2025.
US births per 5-year period, 1990–present (SSA data).
