Ulani is a Hawaiian name that means "cheerful" or "lighthearted". It belongs to the group of melodic Hawaiian names ending in -lani, such as Leilani and Kalani, that have spread across the mainland United States in the last two decades. Ulani is still rare: it climbed from number 8908 in 2015 to a peak of number 2310 in 2023 and ranks number 2749 in 2025 with 63 births.