Here you’ll find 47 Male dog names that start with O that begin with O, organized from “Oakes” to “Ozzy”. They range from classic and short names to mythic and modern choices, useful for everyday use or storytelling.
Male dog names that start with O are male-specific name options beginning with the letter O, often short and punchy. Many reflect languages like Old English, Spanish, Irish, and popular culture.
Below you’ll find the table with origin, pronunciation, meaning.
Origin: Shows each name’s linguistic or cultural root so you can pick names that match heritage or style.
Pronunciation: Gives a simple phonetic guide so you can say each name confidently and avoid mispronunciations.
Meaning: Offers concise definitions or origins so you understand each name’s significance and emotional or cultural associations.
Male dog names that start with O
| Name | Scientific name | Pronunciation | Meaning |
|---|---|---|---|
| Oscar | Canis lupus familiaris | oss-kar | deer friend |
| Oliver | Canis lupus familiaris | ol-ih-ver | olive tree |
| Ollie | Canis lupus familiaris | ol-ee | diminutive of Oliver |
| Odin | Canis lupus familiaris | oh-din | Norse god of wisdom |
| Orion | Canis lupus familiaris | oh-rye-un | Greek myth hunter; constellation |
| Otis | Canis lupus familiaris | oh-tis | wealth, prosperous |
| Odie | Canis lupus familiaris | oh-dee | diminutive; popularized by Garfield’s dog |
| Otto | Canis lupus familiaris | ot-oh | wealth, prosperous |
| Ozzie | Canis lupus familiaris | oz-ee | diminutive of Oswald or Oz |
| Ozzy | Canis lupus familiaris | oz-ee | diminutive of Oswald or Oz |
| Oz | Canis lupus familiaris | oz | strength |
| Obi | Canis lupus familiaris | oh-bee | short form of Obadiah; Star Wars tie |
| Onyx | Canis lupus familiaris | on-iks | black gemstone |
| Oakley | Canis lupus familiaris | oak-lee | meadow of oak trees |
| Osiris | Canis lupus familiaris | oh-sigh-ris | Egyptian god of afterlife |
| Omar | Canis lupus familiaris | oh-mar | flourishing, long-lived |
| Orlando | Canis lupus familiaris | or-lan-doh | famous throughout the land |
| Orson | Canis lupus familiaris | or-sun | bear |
| Oren | Canis lupus familiaris | oh-ren | pine tree |
| Orin | Canis lupus familiaris | or-in | uncertain |
| Olaf | Canis lupus familiaris | oh-laf | ancestor’s relic |
| Oberon | Canis lupus familiaris | oh-beh-ron | Shakespearean fairy king; Germanic roots |
| Octavius | Canis lupus familiaris | ock-TAY-vee-us | eighth |
| Octave | Canis lupus familiaris | ock-tayv | eighth |
| Odysseus | Canis lupus familiaris | oh-diss-ee-us | uncertain |
| Oskar | Canis lupus familiaris | oss-kar | deer friend |
| Oswald | Canis lupus familiaris | oz-wald | divine power |
| Osric | Canis lupus familiaris | oz-rik | divine ruler |
| Osmond | Canis lupus familiaris | oz-mond | divine protection |
| Osborne | Canis lupus familiaris | oz-born | divine bear |
| Ovid | Canis lupus familiaris | oh-vid | uncertain |
| Orville | Canis lupus familiaris | or-vil | uncertain |
| Oran | Canis lupus familiaris | or-an | uncertain |
| Othello | Canis lupus familiaris | oh-thel-oh | uncertain |
| Oziel | Canis lupus familiaris | oh-zee-el | God is my strength |
| Obadiah | Canis lupus familiaris | oh-buh-dye-uh | servant of God |
| Oakes | Canis lupus familiaris | oaks | of the oaks |
| Otello | Canis lupus familiaris | oh-tel-oh | uncertain |
| Oisín | Canis lupus familiaris | uh-sheen | little deer |
| Orpheus | Canis lupus familiaris | or-fee-us | uncertain |
| Octavian | Canis lupus familiaris | ock-TAY-vee-an | eighth |
| Onslow | Canis lupus familiaris | on-sloh | uncertain |
| Orval | Canis lupus familiaris | or-val | uncertain |
| Olivier | Canis lupus familiaris | oh-lee-vee-ay | olive tree |
| Olin | Canis lupus familiaris | oh-lin | uncertain |
| Ozias | Canis lupus familiaris | oh-zay-us | God is my strength |
| Ozz | Canis lupus familiaris | oz | diminutive of Ozzie |
Descriptions
Oscar
Classic male name of Gaelic origin, widely used for dogs; friendly, timeless choice. Alternate spelling Oskar also common.
Oliver
Popular human-to-dog name, warm and familiar. High popularity on pet-name lists; evokes gentleness and nature.
Ollie
Playful, short form of Oliver—easy to call at the dog park. Very common, friendly vibe for male pups.
Odin
Strong, mythic name from Norse mythology. Popular for bold, stoic dogs; conveys power and intelligence.
Orion
Cosmic, adventurous name tied to the stars and myth; suits active, striking dogs.
Otis
Vintage-sounding name with friendly tenor; used often for male dogs and evokes classic Americana.
Odie
Cute, cartoon-associated name—great for small or goofy dogs. Widely recognized from comics.
Otto
Short, punchy Germanic name. Easy to train with and common for male dogs; retro-modern feel.
Ozzie
Casual, playful nickname-style name; shows up frequently in pet lists. Friendly and jaunty.
Ozzy
Rock-star vibe (famous human nicknames) and short for calling at the park; energetic feel.
Oz
Brief, strong name inspired by Hebrew and pop culture; distinctive and bold for male dogs.
Obi
Popularized by Star Wars (Obi-Wan); short, snappy name parents choose for male dogs.
Onyx
Edgy, sleek name for dark-coated dogs; gemstone trend name with modern appeal.
Oakley
Unisex surname-style name; outdoorsy and trendy for male dogs. Easy to call and widely used.
Osiris
Mythic and powerful; used for distinctive dogs with strong presence. Ancient Egyptian cultural tie.
Omar
Arabic-origin male name used for pets; simple, warm, and internationally recognizable.
Orlando
Romantic, literary name (Shakespeare); stylish choice for male dogs with flair.
Orson
Old-fashioned charm; evokes strength and cuddliness. Seen occasionally among male dog name lists.
Oren
Short Hebrew name used for boys and pets; natural, earthy feel for male dogs.
Orin
Used as a masculine given name and for dogs; concise and easy to call.
Olaf
Nordic name with friendly sound; familiar via pop culture and suits fluffy, amiable dogs.
Oberon
Regal, literary name for dignified or whimsical male dogs; memorable and theatrical.
Octavius
Grand, classical Roman name; good for formal or distinctive male dogs. Feels noble and historic.
Octave
Musical Latin-root name; elegant and uncommon for pets—suits composed, attention-grabbing males.
Odysseus
Epic Greek hero name, evokes adventure and loyalty; best for bold, roaming personalities.
Oskar
Alternate spelling of Oscar common in Europe; familiar, strong choice for male dogs.
Oswald
Old English name with vintage character; occasionally used for male dogs seeking unique, classical flair.
Osric
Rare historical name with regal tone; quirky, distinguished pick for male dogs.
Osmond
Surname-style name with old-world feel; uncommon but usable for male pets seeking uniqueness.
Osborne
Surname-origin name used for males; sturdy, traditional ring—occasionally seen in dog-name lists.
Ovid
Classical Roman name (poet Ovid); literary feel for cultured, distinctive male dogs.
Orville
Vintage given name, familiar from pop culture; friendly and old-fashioned, works well for male dogs.
Oran
Short Gaelic/Irish name occasionally used for males and pets; simple and uncommon in English lists.
Othello
Shakespearean character’s name; dramatic and distinctive—fits bold, theatrical male dogs.
Oziel
Biblical/Hebrew name occasionally chosen for pets; strong, spiritual resonance for males.
Obadiah
Biblical name used for boys and sometimes dogs; formal, traditional, and uncommon in pet lists.
Oakes
Surname-style nature name; short, classic, and outdoorsy—suits rugged male dogs.
Otello
Italian form of Othello, known from opera; lyrical and dramatic name choice for male dogs.
Oisín
Irish myth hero’s name; poetic, musical choice for male dogs—distinctive and storied.
Orpheus
Mythical Greek musician; artistic, evocative name for male dogs with graceful presence.
Octavian
Imperial Roman-style name; grand and sophisticated for commanding male dogs.
Onslow
English surname used occasionally as a male given name; quirky, traditional pick for dogs.
Orval
French/Norman place-name origin; uncommon and distinctive choice for male dogs.
Olivier
French form of Oliver; elegant European flavor and used for male pets in multilingual families.
Olin
Short, simple masculine name occasionally used for dogs; crisp and easy to call.
Ozias
Biblical name with archaic charm; uncommon but meaningful choice for male dogs.
Ozz
Extra-short variant used as a punchy call name; casual, energetic, and modern.