Looking for the perfect dog name that starts with “O”? You’re in the right place. This list has 200 dog names starting with O, each with its true meaning.
Every name has a story, so you’ll know exactly what it means and why it fits your pup.
From gentle names like Oona to strong names like Odin, there’s a name here for every personality.
Male Dog names starting with the letter “O,” along with their meanings
| No | Name | Meaning |
| 1 | Odin | Norse god of wisdom and poetry |
| 2 | Oliver | Olive tree / ancestor’s descendant |
| 3 | Oscar | “God’s spear” or “deer friend” |
| 4 | Owen | Born of yew / noble-born |
| 5 | Orion | Giant huntsman turned constellation |
| 6 | Otis | Wealthy; derived from Otto |
| 7 | Otto | Wealth, prosperity (German) |
| 8 | Omar | Flourishing (Arabic/Hebrew) |
| 9 | Omari | God is high; flourishing (Swahili/Arabic) |
| 10 | Ocean | The sea (English) |
| 11 | Octavius | Eighth (Latin) |
| 12 | Orson | Bear cub (Latin) |
| 13 | Orlando | Famous throughout the land (Italian) |
| 14 | Oren | Pine or ash tree (Hebrew) |
| 15 | Oakley | Meadow of oak trees (English) |
| 16 | Olin | Descendant of ancestors (Scandinavian) |
| 17 | Oberon | Noble bear (Germanic) |
| 18 | Obadiah | Servant of God (Hebrew) |
| 19 | Omer | Speaker, eloquent (Hebrew) |
| 20 | Oliviero | Olive tree (Italian) |
| 21 | Oziel | Strength of God (Hebrew) |
| 22 | Osiris | Egyptian god of the afterlife |
| 23 | Oswald | Divine ruler (Old English) |
| 24 | Osmond | Divine protector (English) |
| 25 | Osman | Little bustard (Arabic) |
| 26 | Oswin | Divine friend (Old English) |
| 27 | Ossian | Little deer (Irish legend) |
| 28 | Othello | Dark or swarthy (Italian) |
| 29 | Octavian | Noble; eighth (Latin) |
| 30 | Odysseus | Man of wrath or to journey (Greek myth) |
| 31 | Odell | From the hill (English) |
| 32 | Octavio | Eighth (Spanish/Italian) |
| 33 | Omarion | Variant of Omar, “flourishing” |
| 34 | Otho | Wealth, prosperity (Germanic) |
| 35 | Obed | Servant (Hebrew) |
| 36 | Oisin | Little deer (Irish) |
| 37 | Oaklen | Variant of Oakley, oak meadow |
| 38 | Oslo | Named after the Norwegian city |
| 39 | Ozzy | God’s power; diminutive of Oswald |
| 40 | Ozan | Poet (Turkish) |
| 41 | Oran | Pale green one (Irish) |
| 42 | Ovid | Sheep herder (Latin) |
| 43 | Olympios | Of Mount Olympus (Greek) |
| 44 | Omero | Homer; security or pledge (Italian/Spanish) |
| 45 | Osvaldo | Rule of God (Spanish/Italian) |
| 46 | Ozias | Strength of the Lord (Biblical Greek) |
| 47 | Olander | Oleander tree (Scandinavian) |
| 48 | Ollie | Little olive tree (English diminutive) |
| 49 | Othellio | Noble warrior (Italian variant) |
| 50 | Oakes | Oak woods (English) |
| 51 | Odhran | Little pale green one (Irish) |
| 52 | Ormond | Red, noble (Irish) |
| 53 | Osborn | Divine bear (English) |
| 54 | Orville | Gold town (French) |
| 55 | Otmar | Fame and wealth (Germanic) |
| 56 | Othmar | Rich fame (Germanic) |
| 57 | Ogden | Oak valley (English) |
| 58 | Olliver | Variant of Oliver |
| 59 | Olmo | Elm tree (Italian/Spanish) |
| 60 | Orpheus | Musician of myth, poetic (Greek) |
| 61 | Oleg | Holy, blessed (Slavic) |
| 62 | Orin | Little green one (Irish) |
| 63 | Otti | Wealthy (German diminutive of Otto) |
| 64 | Omran | Prosperity, long-lived (Arabic) |
| 65 | Oden | Variant of Odin; Norse god |
| 66 | Osher | Happiness (Hebrew) |
| 67 | Ozren | Famous mountain (Slavic) |
| 68 | Olyver | Olive tree (variant spelling) |
| 69 | Olavo | Ancestor’s relic (Portuguese) |
| 70 | Osamu | Discipline, study (Japanese) |
| 71 | Odilo | Wealthy, fortunate (Germanic) |
| 72 | Osiel | Made by God (Hebrew/Spanish) |
| 73 | Oron | Light, light of dawn (Hebrew) |
| 74 | Orchard | Field of fruit trees (English) |
| 75 | Olanderus | Oleander flower (Latinized form) |
| 76 | Odie | Song or wealthy spear (English diminutive) |
| 77 | Onni | Happiness, luck (Finnish) |
| 78 | Octaviano | Eighth-born (Spanish) |
| 79 | Orfeo | Orpheus; musician of legend (Italian) |
| 80 | Orban | From the city (Germanic/Hungarian) |
| 81 | Ottavio | Eighth (Italian) |
| 82 | Olindo | Famous land (Italian) |
| 83 | Obad | Servant (Arabic variant) |
| 84 | Ozielito | Little Oziel; strength of God (Spanish) |
| 85 | Omid | Hope (Persian) |
| 86 | Osmin | Protector (Spanish) |
| 87 | Oxley | Ox meadow (English) |
| 88 | Oryan | Variant of Orion |
| 89 | Odai | Support, pillar (Arabic) |
| 90 | Orvel | Spear strength (Old English) |
| 91 | Orencio | Caring, protective (Spanish) |
| 92 | Oswell | God’s well (English) |
| 93 | Orvar | Arrow (Old Norse) |
| 94 | Obryan | Noble, high-born (Irish) |
| 95 | Osburn | God’s bear (English variant) |
| 96 | Odel | Wealthy hill (English) |
| 97 | Odis | Wealth; variant of Otis |
| 98 | Ozkan | Pure blood (Turkish) |
| 99 | Osgood | God is good (Old English) |
| 100 | Orvilleo | Golden town (Italian variant) |
Female Dog names starting with the letter “O,” along with their meanings
| No | Name | Meaning |
| 1 | Olivia | Olive tree (Latin) |
| 2 | Ophelia | Help, aid (Greek) |
| 3 | Odessa | Wrathful, or from the city of Odessa |
| 4 | Octavia | Eighth-born (Latin) |
| 5 | Oriana | Dawn, golden (Latin) |
| 6 | Olympia | From Mount Olympus (Greek) |
| 7 | Oona | Lamb (Irish) |
| 8 | Orla | Golden princess (Irish) |
| 9 | Ondine | Little wave (French from Latin) |
| 10 | Oralia | Golden (Latin/Spanish) |
| 11 | Ozella | God’s strength (Hebrew origin) |
| 12 | Oksana | Praise to God (Ukrainian) |
| 13 | Olinda | Beautiful protector (Portuguese) |
| 14 | Odele | Wealthy (Greek) |
| 15 | Orabella | Beautiful altar (Latin) |
| 16 | Ottilie | Prosperous in battle (German) |
| 17 | Olevia | Olive tree (variant of Olivia) |
| 18 | Orinda | Gold (Spanish) |
| 19 | Oceana | Ocean (Greek/Latin) |
| 20 | Omara | Flourishing, thriving (Arabic/Spanish) |
| 21 | Ottavia | Eighth (Italian) |
| 22 | Orsola | Little bear (Italian) |
| 23 | Olyssa | Noble, defender (Greek origin) |
| 24 | Ozma | Sweet air (Persian) |
| 25 | Olea | Olive tree (Latin) |
| 26 | Orva | Worthy friend (English) |
| 27 | Ophira | Gold (Hebrew) |
| 28 | Omayra | Long life (Arabic) |
| 29 | Ovidia | Sheep herder (Latin) |
| 30 | Oihana | Forest (Basque) |
| 31 | Orlena | Gold (Latin origin) |
| 32 | Orelia | Golden (Latin) |
| 33 | Orinthia | Flower (Greek) |
| 34 | Orania | Dawn (Greek) |
| 35 | Osanna | Praise (Latin) |
| 36 | Odalys | Noble (Germanic) |
| 37 | Orvaine | Golden friend (Old English) |
| 38 | Oleta | Winged one (Spanish) |
| 39 | Orabelle | Beautiful altar (Latin/French) |
| 40 | Odelina | Little wealthy one (French) |
| 41 | Orinthie | Flowering (Greek variant) |
| 42 | Ozelle | God’s strength (French variant) |
| 43 | Oksandra | Defender of man (Slavic) |
| 44 | Orlanda | Famous land (Italian/Spanish) |
| 45 | Oliana | Oleander tree (Hawaiian/Spanish) |
| 46 | Orielle | Golden (French) |
| 47 | Orra | White, fair (Scottish) |
| 48 | Ottilia | Prosperous in battle (German variant) |
| 49 | Ovidia | Shepherdess (Latin) |
| 50 | Oumi | Ocean (Japanese) |
| 51 | Orinta | Peaceful (Lithuanian) |
| 52 | Orenda | Spiritual energy (Iroquois) |
| 53 | Olivine | Green gemstone (French) |
| 54 | Oraliah | Light of God (Hebrew variant) |
| 55 | Odelinae | Wealthy (French variant) |
| 56 | Olalla | Well-spoken (Greek via Spanish) |
| 57 | Ornella | Flowering ash tree (Italian) |
| 58 | Ozara | Treasure (Hebrew) |
| 59 | Olindae | Beautiful protector (Portuguese variant) |
| 60 | Orit | Light (Hebrew) |
| 61 | Olivetta | Little olive tree (Italian) |
| 62 | Orrahn | Dawn-like (Scottish variant) |
| 63 | Odina | Mountain (Germanic/Native American) |
| 64 | Othilie | Prosperous in battle (German) |
| 65 | Orvaena | Golden friend (variant) |
| 66 | Orlinda | Golden beauty (Spanish) |
| 67 | Olisa | God is my salvation (Igbo) |
| 68 | Olesya | Holy (Slavic) |
| 69 | Omolara | Child is family (Yoruba) |
| 70 | Oluwaseun | Thank God (Yoruba) |
| 71 | Odeta | Wealthy (Greek) |
| 72 | Oriola | Golden mouth (Catalan) |
| 73 | Oliviana | Olive tree (Latin) |
| 74 | Orly | My light (Hebrew) |
| 75 | Ovidia | Shepherdess (Latin) |
| 76 | Onella | Light (Greek) |
| 77 | Orlanda | Famous throughout the land (Italian) |
| 78 | Orsolina | Little she-bear (Italian) |
| 79 | Odella | Wealthy (Germanic) |
| 80 | Ovidia | Sheep herder (Latin) |
| 81 | Odette | Wealth (French) |
| 82 | Orsina | Little bear (Italian) |
| 83 | Orsa | Bear (Italian) |
| 84 | Olwyn | White footprint (Welsh) |
| 85 | Orabelle | Beautiful altar (French/Latin) |
| 86 | Orianae | Golden dawn (Latin) |
| 87 | Ovidia | Shepherdess (Latin) |
| 88 | Oleta | Winged one (Spanish) |
| 89 | Ormelle | Little serpent (French) |
| 90 | Ozina | Strong (Slavic) |
| 91 | Olianae | Oleander tree (Hawaiian variant) |
| 92 | Orizaba | Place of the obsidian (Nahuatl) |
| 93 | Oritza | Light (Basque) |
| 94 | Oliana | Oleander tree (Hawaiian/Spanish) |
| 95 | Orsolya | Little bear (Hungarian) |
| 96 | Ovidia | Sheep herder (Latin) |
| 97 | Oraniah | Dawn (Greek) |
| 98 | Orlanda | Famous land (Italian) |
| 99 | Orabelle | Beautiful altar (Latin/French) |
| 100 | Ozellea | Divine strength (French variant) |
