Pure lake or waterfall
A modern American compound name combining Katie, a diminutive of Katherine meaning 'pure', and Lynn, which stems from the Welsh word for 'lake'. While Katie has Greek roots, the suffix Lynn adds an English or Welsh nature-inspired element. It represents a blend of traditional nickname charm with a mid-century compound style.
Fewer than 5 girls were named Katielynn in 2025.
US births per 5-year period, 1990–present (SSA data).
