MallowbyNames

Olaf

OH-lahf · Ancestor's descendant or heirloom

2025 rank (boys)
#12,008
Babies named in 2025
5
Peak popularity
1885
2025 frequency
1 in 341,615 boys
Usually for
Boys
Trend
Declining since 2009

Declining since 2009, #12,008 for boys today.

Popularity of Olaf since 1880

Babies named Olaf per year in U.S. Social Security records. Raw births topped out in 1916, but relative to how few babies were recorded back then, Olaf's real moment was 1885.

2653791880192019602000Most births 1916Boys
Data table (by decade)
DecadeBoys
1880s149
1890s124
1900s126
1910s501
1920s357
1930s190
1940s137
1950s142
1960s175
1970s148
1980s79
1990s98
2000s137
2010s133
2020s35

Meaning & origin

Olaf is a name with deep roots in Scandinavian history, derived from Old Norse Áleifr, meaning 'ancestor's descendant.' It was most popular in the United States during the 1880s, peaking in 1885, when immigration from Scandinavia was at its height. However, its usage has steadily declined; since 2009 it has been falling in popularity. By 2025, it ranked 12,008 and was given to approximately 1 in 341,615 newborns. Despite its rarity, the name carries strong cultural associations through the legacy of Saint Olaf and remains familiar to modern audiences via popular culture.

Olaf derives from the Old Norse name Áleifr, composed of elements meaning 'ancestor' (anu) and 'heir' or 'descendant' (leifr). It was borne by several early kings of Norway and Denmark, including Saint Olaf (Olaf II), the patron saint of Norway. The name spread across Scandinavia and into Germany and the Netherlands, and was brought to America by Scandinavian immigrants in the 19th century.

Nicknames & variants

Nicknames: Ole, Oli, Olly

Variants: Olof, Olav, Oluf, Ólafur

Sibling names for Olaf

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

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

O is for Olaf, our favorite little boy.

O is for Olaf…”

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

Make Olaf's book

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

Questions parents ask

What does the name Olaf mean?
Olaf means 'ancestor's descendant' or 'heirloom' from Old Norse elements anu (ancestor) and leifr (heir).
Is Olaf a popular name today?
Olaf is not currently popular. It ranked 12,008 in 2025, meaning it is very rare, with about 1 in 341,615 newborns receiving the name.
Is Olaf a boy or girl name?
Olaf is traditionally a boy's name.