Pure; of the sea
Kaysea is a modern phonetic blend, likely combining the traditional name Kay, meaning 'pure,' with the word 'sea.' It is often used as a creative spelling of the name Casey or as a nature-inspired variation of Kelsey.
Fewer than 5 girls were named Kaysea in 2025.
US births per 5-year period, 1990–present (SSA data).