MallowbyNames

Tonnia

TAH-nee-uh · Of uncertain origin; possibly a feminine form of Tony or a variant of Tonia.

Peak popularity
1970
Usually for
Girls
Trend
Holding steady

Holding steady.

Popularity of Tonnia since 1959

Babies named Tonnia per year in U.S. Social Security records.

37101960198020002020Most births 1970Girls
Data table (by decade)
DecadeGirls
1950s6
1960s57
1970s49
1980s0
1990s0
2000s0
2010s0
2020s0

Meaning & origin

Tonnia is a rare feminine given name, first recorded in the United States in 1959. Its etymology is uncertain but likely derives as an elaborate form of Tony or a variant of Tonia, both ultimately stemming from Anthony. The name experienced a minor peak in the year 1970, during the same decade when similar phonetic coinages like Donna and Connie were popular. However, Tonnia has always been exceptionally uncommon; it never ranked among the top thousand names. Since its peak in the 1970s, its trajectory has been stable, with sporadic usage maintained at very low levels. The name has no strong association with any specific U.S. state. Its enduring rarity gives it a distinctive, under-the-radar quality for parents seeking an unusual name tied to mid-century American naming trends.

Tonnia is a rare English name that likely emerged as a feminine elaboration of Tony, itself a diminutive of Anthony (from Latin Antonius, meaning 'priceless' or 'invaluable'). Alternative theories suggest it may be a spelling variant of Tonia, derived from Latin Antonius. The name first appeared in U.S. records in 1959 and saw modest use during the 1970s, peaking slightly in 1970 before stabilizing at very low frequency.

Nicknames & variants

Nicknames: Toni, Tonia, Nia

Variants: Tonia, Tonya, Toni

Sibling names for Tonnia

Names that share Tonnia's style, for a brother or sister.

Sisters: Donna, Connie, Tina, Carla, Regina

Brothers: Tony, Danny, Ronnie, Johnny, Bobby

A parent animal hugging its little one, the personalized name page

T is for Tonnia, our favorite little girl.

T is for Tonnia…”

In a Mallowby alphabet book, Tonnia's letter becomes Tonnia's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Tonnia's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Tonnia mean?
Tonnia is of uncertain origin, but it is often considered a feminine form of Tony, itself derived from Anthony, meaning 'priceless' or 'invaluable'.
How popular is the name Tonnia currently?
Tonnia is extremely rare. It has not ranked in the U.S. top 1000 in recent decades, and as of 2025, its rarity makes a precise 1-in-N statistic unavailable.
Is Tonnia a boy or girl name?
Tonnia is almost exclusively used as a girl's name.