Unique baby names ending in O (and the "o" sound) are among the very hottest right now, with the likes of Leo and Theo, Harlow and Margot rocketing up the popularity charts. But there are still oodles of obscure O-ending names out there, just waiting to be discovered. We've polled our members to bring you 100+ of our website's very favorite unique O-ending baby names, from Amparo and Benno to Yarrow and Zeno. If you want to see even more baby names ending in O, check out our complete lists of Girl Names Ending in O and Boy Names Ending in O. If quirky baby names ending in O are your thing, find our full list of rare, uncommon, and unique names ending in o here.
