Maisyn is a modern girls' spelling of Mason, the English occupational surname meaning "stoneworker", reshaped with the -syn ending seen in Madisyn and Addisyn; some parents also hear the French maison, "house". It rose from number 12613 in the United States in 2000 to a peak of number 1233 in 2021 and ranks number 1661 in 2025 with 125 girls.