This list includes 24 Cute nicknames that start with O, from “Obi” to “Ozzy”. These playful, affectionate, and mostly gender-neutral names work well for partners, friends, kids, and pets.

Cute nicknames that start with O are short, friendly names you use for loved ones and animals. Many come from shortened given names, pop culture, or playful sounds — for example, “Ozzy” became popular through a famous musician.

Below you’ll find the table with Nickname, Meaning / Origin, Usage, and Example context.

Nickname: The actual pet or people name you can pick and try out, shown clearly for quick scanning.

Meaning / Origin: A brief note about the name’s root, literal meaning, or likely source to help your choice.

Usage: A short tag showing whether the nickname suits a partner, friend, child, or pet so you know its tone.

Example context: A one-line example showing how you might call someone by this nickname in real life.

Cute nicknames that start with O

NicknameMeaning/OriginUsage TagsPopularity/Notes
Olliediminutive of Oliver/Oliviapartner,friend,child,petvery popular, playful, gender-neutral
Olishort form of Oliver/Oliviapartner,friend,child,petsimple, modern spelling variant
Ollyvariant of Olliepartner,friend,child,petcommon in UK, cute and informal
Olivegemstone/fruit namepartner,friend,child,petclassic, slightly vintage vibe
Opalgemstone namepartner,friend,child,petelegant, nature-inspired nickname
Opiediminutive used for Ophelia/Oliverpartner,friend,child,petcute, familiar from pop culture
OriHebrew “my light”partner,friend,child,petshort, meaningful and unisex
Orievariant of Ori/Orionpartner,friend,child,petsoft-sounding, less common
Oreocookie-inspired nicknamepartner,friend,petpopular pet name, playful food nickname
Odiecomic-strip dog namefriend,child,petcute, cartoon-associated
ObiJapanese belt; short for Obadiahpartner,friend,child,petshort, pop-culture friendly
Ozzydiminutive of Oscar/Ozpartner,friend,child,petrockstar-friendly, casual
Ozshort for Oscar or Ozzypartner,friend,petconcise, punchy nickname
Ovishort form used for Ovechkin/Ovidpartner,friend,petsporty, playful nickname
Onyxgemstone namepartner,friend,petstylish, strong and unisex
OsoSpanish “bear”partner,friend,child,petaffectionate “bear” nickname
OrsoItalian “bear”partner,friend,child,petromantic, continental flair
Orlyfrom Hebrew “my light” or Orly airport nicknamepartner,friend,petlight, breezy and friendly
Otisgiven name often used affectionatelypartner,friend,petvintage charm, friendly
OttoGermanic name often used as nicknamepartner,friend,child,petshort, symmetrical and cute
Omiaffectionate short form; German “grandma”partner,friend,child,petused in some cultures; familial connotations
Otticute diminutive of Ottopartner,friend,child,petvery playful, diminutive form
OrinGaelic/Irish roots meaning “pale, fair”partner,friend,child,petshort, lyrical and uncommon
Ocelotplayful wild-cat nicknamepartner,friend,petquirky, bold and playful

Descriptions

Ollie
A warm, bubbly nickname used for people and pets; feels friendly and easygoing.
Oli
Minimal and modern-feeling; great for a casual, gender-neutral pet name or partner pet-name.
Olly
UK-friendly playful form of Ollie, cozy and affectionate for loved ones and pets.
Olive
A soft, quirky choice that feels cozy and wholesome when used as a pet or partner nickname.
Opal
Shiny, slightly vintage nickname often chosen for its warmth and unique, precious feel.
Opie
Short and friendly with playful energy; commonly chosen for pets and close friends.
Ori
Bright, simple and warm; works well as an intimate nickname or for a beloved pet.
Orie
Gentle, lyrical nickname that feels affectionate and slightly whimsical.
Oreo
Sweet, playful pet name that also works for partners or friends with a goofy sense of humor.
Odie
Very pet-friendly and playful; evokes a loyal, goofy companion vibe.
Obi
Memorable and snappy; works well for tech-savvy or Star Wars-fan households.
Ozzy
Edgy yet affectionate; a spunky choice for pets or fun-loving friends and partners.
Oz
Minimal and cool; feels laid-back and distinctive for a pet or close friend.
Ovi
Short, energetic nickname with sporty associations; cute for close friends and pets.
Onyx
Sleek and modern-sounding; great for a bold pet or someone with chic style.
Oso
Warm, cuddly nickname meaning “bear,” perfect for a partner or pet who’s huggable.
Orso
A slightly more exotic “bear” pet-name with affectionate, old-world charm.
Orly
Cheerful, easygoing nickname that feels intimate and upbeat for friends or partners.
Otis
Old-fashioned but affectionate; used as a cozy nickname for pets or beloved people.
Otto
Crisp, rhythmic nickname with a vintage, playful vibe — great for pets and kids.
Omi
Soft, sweet-sounding nickname that can be playful; note: means “grandma” in German contexts.
Otti
Tiny, friendly-sounding nickname ideal for small pets, kids, or as an affectionate partner name.
Orin
Gentle, poetic nickname with an old-world feel; works well for close friends or children.
Ocelot
Fun, slightly adventurous pet nickname for someone feisty and sleek; used mainly for pets.
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