O-, var. Odell▼, O'Shay, O'Shea, O'Keefe, means "descendant of". The variation Odell is commonplace as a form of O-.
Oakes, var. Oak, Ochs, Oaks, means "near the oak trees". A seldom-used birth name, Oakes is found more conventionally as a surname. See also Oates.
Oakley▲, var. Oak, Oakes, Oakly, Oaklee, Oakleigh, means "meadow of oak trees". The name Oakley has surged in popularity as a name for baby boys over time since 1880-1889.
Obadiah, var. Obie▼, Oved, Obed, Obadya, Ovadiah, Obediah, Obadias, Ovadiach, means "servant of God". A scarce baby name. The form Obie is commonly used as a version of Obadiah.
Obama, means "crooked, somewhat bent". Rarely used as a birth name.
Oberon, var. Oberron, means "royal bear". Oberon is a sparsely used men's name. See also Oeberon.
Obert, means "wealthy and bright". Unique as a given name for boys, Obert is found more frequently as a surname. See also Ebert.
Obi, means "heart". Unique as a name for kids, occurring more frequently as a last name. See also Obie.
Octavio▼, var. Octavo, Octave, Ottavio, Octavus, Octovien, Octavius, Octavian, Octavious, means "eighth". Usage of Octavio as a boys' name has declined over time since 2003. The form Octavius is common as a variation of the name.
Odell▼, var. Odie▼, Odall, means "woad hill". Usage of Odell, Odie and Dell as boys' names has trended downward over the years since 1880. A name suitable for both sexes. The variation Odie is popular as a variant form of Odell.
Odilo, var. Odile, Ottild, Otildo, Odilon, Odilio, Ottildo, means "fortunate or prosperous in battle". Odilo is a sparsely used masculine name. See also Odall.
Odin▲. The name Odin has increased in popularity over time. See also Orin.
Odo. Seldom used as a name for newborns, Odo is found more conventionally as a last name. See also Ota.
Odolf, var. Odulf, Odolff, means "prosperous wolf". Scarce as a name for boys. See also Adolf.
Odhran, var. Oran▼, Odran, means "pale". Usage of Oran as a boys' name has declined over time since 1910. The form Oran is common as a variation of the name.
Odysseus, var. Odysse, means "angry man". Seldom used as a birth name for males.
Ofir, var. Ophir, Ofeer, means "gold". Ofir is a scarce men's name.
Ogden, var. Ogdon, Ogdan, means "oak valley". Ogden is uncommonly used as a masculine name, and it appears frequently (Top 2%) as a last name according to the US Census. See also Osten.
Ohad, var. Ohed, means "loved one". Ohad is rarely occurring as a masculine name. See also Shad.
Oisin, var. Ossin, Ossian. Oisin is a rarely used masculine name. See also Orsin.
Olaf▼, var. Ola, Ole▼, Olof, Olov, Olle, Olin▼, Olav, Olave, Olaff, means "ancestor's relic". Olaf is an intermittently used masculine name. The variation Olin is widely used as a variant form of the name.
Oleg, means "holy". Seldom used as a given name. See also Olen.
Olexei, var. Olexi, Oleksi, Olexiy, Olexey, Oleksiy, Oleksey, Oleksei, means "man's defender". Olexei is an uncommonly used first name.
Olimpio, var. Olimpo, Olympus, Olympio, Olympios, means "from Mount Olympus". Olimpio is a scantly used men's name.
Olin▼, var. Olyn, Olen▼. Olin and Olen have decreased in favor as names for children over the years. The variation Olen is familiar as a variant form of Olin.
Olindo, means "scented". Seldom used as a birth name.
Oliver▲, var. Olley, Ollie▼, Olivor, Olivio, Olliver, Ollivor, Olivero, Olivier, Oliviero, Oliverio, means "olive tree". A very common choice for a given name for boys (#32 the past year) that also exists often as a last name. The variation Ollie is commonplace as a form of Oliver.
Omar▲, var. Omer▼, Omarr, means "speaker; flourishing, long-lived". The name Omar has gained in popularity as a name for children over time since 1900-1909. The variation Omer is generally used as a form of this name.
Omari▲, means "God the highest". The name Omari has risen in popularity over the years. See also Omero.
Omri, means "sheaf of grain". Rarely used as a given name. See also Omer.