Baby names that start with O often feel elegant, open, warm, and memorable. The letter O gives names a rounded and graceful sound, which makes many O names feel soft but distinctive.
For boys, names like Oliver, Owen, Oscar, and Orion are handsome and stylish. For girls, names like Olivia, Ophelia, Octavia, and Olive feel classic, literary, and beautiful.
If you are searching for baby names that start with O, this guide includes 100 beautiful choices: 50 boy names and 50 girl names.
50 Baby Boy Names That Start with O
Oliver, Owen, Oscar, Orion, Omar, Otto, Odin, Otis, Oakley, Ocean, Orlando, Osiris, Onyx, Ozzy, Oswald, Oberon, Oren, Orson, Oskar, Omari, Odell, Ollie, Oslo, Oakes, Octavian, Octavio, Orville, Oswin, Ozias, Obadiah, Odysseus, Olin, Orin, Orrin, Oziel, Oleander, Oakland, Osborne, Olaf, Oceanus, Omid, Onslow, Ozair, Obie, Orlo, Oshea, Ovid, Osten, Orman, Othniel
50 Baby Girl Names That Start with O
Olivia, Olive, Ophelia, Octavia, Oakley, Ocean, Opal, Oriana, Olympia, Odette, Oona, Ona, Orla, Ottilie, Ottilia, Odessa, Oliviana, Ollie, Oralia, Odelia, Oceana, Oksana, Olena, Orielle, Orianne, Olivette, Odilia, Orchid, Olea, Osanna, Orabella, Olinda, Oleta, Omara, Ondine, Oria, Orlena, Ovidia, Odele, Ozara, Odelina, Oksanna, Odelie, Oceane, Olivine, Orlanda, Osha, Oriel, Oswin, Onaelle
Final Thoughts
Baby names that start with O can feel soft, classic, artistic, or adventurous. Whether parents love a popular name like Oliver or Olivia, a literary name like Ophelia, or a bold name like Orion, O names offer many beautiful possibilities.
