Modern invented name, likely meaning sea or sky
Kaylonni is a contemporary American name likely created by blending the Hawaiian name Kai, meaning sea, or the name Kay with the rhythmic suffix -lonni. It follows the trend of melodic, multi-syllabic names ending in 'i' or 'ie'. Because it is a modern coinage, it lacks a singular historical etymology but carries a breezy, island-inspired feel.
Fewer than 5 girls were named Kaylonni in 2025.
US births per 5-year period, 1990–present (SSA data).