Onisa: a male name of Greek origin meaning "This name derives from the Ancient Greek “ánisos (Ἀνυσoς) Anysía (Ἀνυσία),” meaning “unequal, not equal, uneven".It derives from the Greek word "ánisos > Anysía".
Onisa has maintained its appeal as a masculine name in modern times while preserving its Greek roots. Today, parents are drawn to its meaningful essence of "This name derives from the Ancient Greek “ánisos (Ἀνυσoς) Anysía (Ἀνυσία),” meaning “unequal, not equal, uneven" and its cultural richness. This name bridges traditional heritage with contemporary naming trends.
Quick Facts About Onisa
Quick facts about Onisa
Origin
Greek
Gender
Boy name
Popularity
Moderately popular
Researched by Name Doctor Linguistics Team
Our names are verified by professional linguists with expertise in etymology and cultural naming traditions.
Last reviewed: November 2025
Meaning
This name derives from the Ancient Greek “ánisos (Ἀνυσoς) Anysía (Ἀνυσία),” meaning “unequal, not equal, uneven.” Saint Anysia was a Martyr of Greece. In Thessaly, she was a wealthy woman of Salonika, who used her funds to aid the poor. A soldier accosted her in the street and tried to drag her to pagan sacrifice. Anysia resisted and was killed when the soldier attacked her with his sword.
Etymology & Details
Name Root
ánisos > Anysía
Other Scripts
Russian (Ониса)
How to Pronounce Onisa
Onisa is pronounced /oʊˈniː.sə/(Greek)
Step-by-step pronunciation guide:
Break it into syllables: On-is-a
Say it like: "ON-IS-A"
Practice saying it naturally a few times
Usage & Popularity
Onisa is predominantly used in russian speaking communities, where it maintains strong cultural connections and traditional significance.
russian
Name Relationships
Onisa is an affectionate diminutive of Anisiy, commonly used in russian speaking regions. This shortened form maintains the original meaning while offering a more intimate, familiar tone.
Onisa means "This name derives from the Ancient Greek “ánisos (Ἀνυσoς) Anysía (Ἀνυσία),” meaning “unequal, not equal, uneven.” Saint Anysia was a Martyr of Greece. In Thessaly, she was a wealthy woman of Salonika, who used her funds to aid the poor. A soldier accosted her in the street and tried to drag her to pagan sacrifice. Anysia resisted and was killed when the soldier attacked her with his sword.". The name comes from ánisos > Anysía. In its original form, the name derives from ánisos (Ἀνυσoς) Anysía (Ἀνυσία). This greek name has been passed down through generations, carrying its meaning across different cultures and time periods. Parents who choose Onisa for boys often connect with the name's meaning of "This name derives from the Ancient Greek “ánisos (Ἀνυσoς) Anysía (Ἀνυσία),” meaning “unequal, not equal, uneven.” Saint Anysia was a Martyr of Greece. In Thessaly, she was a wealthy woman of Salonika, who used her funds to aid the poor. A soldier accosted her in the street and tried to drag her to pagan sacrifice. Anysia resisted and was killed when the soldier attacked her with his sword." as a quality they hope to see in their child. While not the most common choice, Onisa's meaningful roots have given it staying power among parents looking for a name with substance.
What is the origin of the name Onisa?
Onisa is a greek name. The name traces back to ánisos > Anysía. The original form ánisos (Ἀνυσoς) Anysía (Ἀνυσία) shows the name's roots in its native language. In its native script, Onisa is written as Russian (Ониса). The name remains closely tied to russian naming traditions while occasionally appearing in other cultures. The greek meaning "This name derives from the Ancient Greek “ánisos (Ἀνυσoς) Anysía (Ἀνυσία),” meaning “unequal, not equal, uneven.” Saint Anysia was a Martyr of Greece. In Thessaly, she was a wealthy woman of Salonika, who used her funds to aid the poor. A soldier accosted her in the street and tried to drag her to pagan sacrifice. Anysia resisted and was killed when the soldier attacked her with his sword." reflects values important in the culture where this name first appeared.
Is Onisa a boy or girl name?
Onisa is a boy's name. The name has been used for boys across many generations, maintaining its masculine character through different eras and cultures. In greek tradition, Onisa has historically been given to boys. The meaning "This name derives from the Ancient Greek “ánisos (Ἀνυσoς) Anysía (Ἀνυσία),” meaning “unequal, not equal, uneven.” Saint Anysia was a Martyr of Greece. In Thessaly, she was a wealthy woman of Salonika, who used her funds to aid the poor. A soldier accosted her in the street and tried to drag her to pagan sacrifice. Anysia resisted and was killed when the soldier attacked her with his sword." carries well for a son, giving the name lasting appeal.
How do you pronounce Onisa?
Onisa is pronounced "/oʊˈniː.sə/". This pronunciation follows el language patterns. In its original script, the name appears as Russian (Ониса), which helps explain how native speakers pronounce it. As a single-syllable name, Onisa is quick to say and easy to call out. If you're unfamiliar with greek names, listening to a native speaker say Onisa can help you catch the right rhythm and emphasis. The name's root ánisos > Anysía influences how Onisa sounds in its original language.
What are common nicknames for Onisa?
Onisa is commonly used as a nickname for Anisiy. As a diminutive of Anisiy, Onisa started as an affectionate short form used by family and close friends. Many people named Anisiy go by Onisa throughout their lives, using the full name only on official documents. In greek cultures, using Onisa as a nickname carries a sense of familiarity and warmth. This nickname pattern is common among boys and men, though some now use Onisa as a given name on its own. Today, parents sometimes put Onisa on the birth certificate directly, skipping the longer form entirely. This gives the child a name that feels both complete and approachable.
How popular is the name Onisa?
Onisa is somewhat common, familiar to most people. With moderate popularity, Onisa offers familiarity without being everywhere. It's the kind of name people recognize but don't hear every day. Onisa's popularity may vary between greek communities and the broader population, where naming trends differ. The name's meaning of "This name derives from the Ancient Greek “ánisos (Ἀνυσoς) Anysía (Ἀνυσία),” meaning “unequal, not equal, uneven.” Saint Anysia was a Martyr of Greece. In Thessaly, she was a wealthy woman of Salonika, who used her funds to aid the poor. A soldier accosted her in the street and tried to drag her to pagan sacrifice. Anysia resisted and was killed when the soldier attacked her with his sword." likely influences its appeal, as parents often choose names that express values or hopes for their children. Among boys' names, Onisa holds its own, appealing to parents who value distinctive options.
Where is the name Onisa commonly used?
Onisa is used primarily in russian naming traditions. Though greek in origin, Onisa found a home in other cultures where it resonated with local naming preferences. The meaning "This name derives from the Ancient Greek “ánisos (Ἀνυσoς) Anysía (Ἀνυσία),” meaning “unequal, not equal, uneven.” Saint Anysia was a Martyr of Greece. In Thessaly, she was a wealthy woman of Salonika, who used her funds to aid the poor. A soldier accosted her in the street and tried to drag her to pagan sacrifice. Anysia resisted and was killed when the soldier attacked her with his sword." carries universal appeal, helping explain why different cultures adopted Onisa into their naming traditions. A child named Onisa will likely find their name recognized in multiple countries, which can be an advantage for families with international connections or who value global accessibility. Across these cultures, Onisa is given to boys, maintaining consistent gender association.
Sources: Etymology verified through linguistic research including Oxford Dictionary of First Names, Behind the Name, and academic etymology databases.