MallowbyNames

Bettyjo

BET-ee-joh · Combination of the names Betty and Jo; Betty is a diminutive of Elizabeth (meaning 'God is my oath' in Hebrew) and Jo is a short form of Josephine (meaning 'God will increase').

Peak popularity
1965
Usually for
Girls
Trend
Holding steady

Holding steady.

Popularity of Bettyjo since 1920

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

102131192019602000Most births 1965Girls
Data table (by decade)
DecadeGirls
1920s132
1930s99
1940s87
1950s95
1960s152
1970s149
1980s47
1990s5
2000s0
2010s0
2020s5

Meaning & origin

Bettyjo is a compound given name combining two mid-20th-century favorites: Betty, the enduring diminutive of Elizabeth, and Jo, the spunky short form of Josephine. According to U.S. Social Security data, the name first appeared on the records in 1920, establishing it as a product of the early twentieth century's enthusiasm for blended names like Maryann and Patsy. Its peak year came in 1965, when the name saw its highest number of registrations. Since then, usage has declined and remained stable at a very low level, never cracking the top thousand. Data for 2025 shows no change in trajectory, with the name's one-in-N rate effectively zero. No top states were associated with Bettyjo in the dataset, suggesting its use was diffuse rather than regionally concentrated. As a compound, Bettyjo fits patterns common in the 1950s and 1960s, when double-barreled names ending in 'Jo' or 'Ann' were particularly fashionable across the American South and Midwest. While never common, it reflects a naming style that felt modern and distinctive in its era, and it continues to attract parents seeking a name with a vintage, friendly charm.

Bettyjo is a compound name formed by fusing Betty, a pet form of Elizabeth, with Jo, a short form of Josephine. Elizabeth derives from the Hebrew Elisheba, meaning 'God is my oath,' while Josephine is the feminine form of Joseph, from the Hebrew Yosef, meaning 'He will add' or 'God will increase.' This type of double-barreled given name became fashionable in the United States in the mid-20th century, especially in the South and Midwest. Bettyjo itself saw modest use from the 1920s through the 1970s, with its peak year of popularity occurring in 1965 according to U.S. Social Security data.

Nicknames & variants

Nicknames: Betty, Jo, BJ, Bet

Variants: Betty Jo, Betty-Jo, Bettijo, Bettie Jo

Sibling names for Bettyjo

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

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

B is for Bettyjo, our favorite little girl.

B is for Bettyjo…”

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

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Questions parents ask

What does the name Bettyjo mean?
Bettyjo is a combination of Betty (a diminutive of Elizabeth, meaning 'God is my oath') and Jo (a short form of Josephine, meaning 'God will increase'). The name is generally understood as a compound without a single unified meaning.
How popular is the name Bettyjo?
Bettyjo has not been among the top 1000 names in recent years. Its peak popularity occurred in 1965, when it ranked lower than the overall top 1000. In 2025, it holds a stable trajectory with very few new registrations.
Is Bettyjo a boy's or girl's name?
Bettyjo is almost exclusively a feminine name, reflecting the feminine components Betty and Jo.