Boy Names that Start with the Letter O

Boy names starting with O

Below are the most popular O-names for boys in the U.S. Click on a name to see its popularity graph, popularity table, similar names, and every single blog post I’ve ever written about it.

To see more boy names, visit the boy names directory page.

Oak Oakey Oakie Oakland Oaklee Oaklen Oakley Oakly Oasis Oather Oatis Oba Obada Obadiah Obafemi Obaid Obaloluwa Obama Obasi Obbie Obdulio Obe Obed Obediah Ober Oberon Obert Obet Obeth Obey Obi Obie Obinna Obra Obrain Obrey Obrian Obrien Obry Obryan Obryant Oby Oc Ocasio Oce Ocean Ocie Ociel Oconnor Octabio Octave Octavia Octavian Octaviano Octavien Octavio Octavion Octavious Octavis Octavius Octavus Od Oda Odai Odalis Odaniel Odarius Odarrius Odas Oday Odbert Oddie Oddis Ode Odean Oded Odeh Odel Odell Odelle Oden Odene Oder Odera Odes Odessa Odia Odice Odie Odies Odilon Odin Odis Odom Odon Odos Odus Ody Odyn Odysseus Odyssey Oel Oen Ofa Ofek Ofelia Offie Ofir Ogden Ogechukwu Oghenetega Ogie Ogle Oguz Ohad Ohagi Ohajee Ohaji Ohan Ohani Ohara Ohene Ohitika Ohlin Ohm Ohmer Ohn Oisin Oiva Ojani Ojany Ojas Ojay Oji Okan Okechukwu Okeith Okey Okie Okla Okley Okoye Okpara Ola Olabode Oladapo Oladele Oladimeji Oladipo Oladipupo Olaf Olajawon Olajide Olajuwan Olajuwon Olakunle Olalekan Olamide Olan Oland Olanda Olander Olando Olaniyan Olanrewaju Olaoluwa Olas Olatunde Olatunji Olav Olavi Olawale Olayinka Olbin Oldair Olden Oldrich Ole Olean Olee Oleg Olegario Oleh Oleksandr Olen Olester Oley Olga Oli Olice Olie Olif Olin Olindo Olis Olisaemeka Oliva Olive Oliver Oliverio Olivet Olivia Olivier Olivio Ollen Ollice Ollie Ollin Ollis Olliver Olly Olman Olney Olof Olon Olsen Olson Olton Olu Oluf Olufemi Olujimi Olukayode Olumide Olumuyiwa Olurotimi Olus Olusegun Oluseun Oluseyi Olushola Oluwadamilare Oluwadamilola Oluwadarasimi Oluwademilade Oluwadurotimi Oluwafemi Oluwaferanmi Oluwamayomikun Oluwamayowa Oluwanifemi Oluwapelumi Oluwasegun Oluwasemilore Oluwaseun Oluwaseyi Oluwaseyifunmi Oluwatamilore Oluwatimilehin Oluwatimileyin