How popular is the baby name Pius in the United States right now? How popular was it historically? Find out using the graph below! Plus, see baby names similar to Pius and check out all the blog posts that mention the name Pius.

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Popularity of the Baby Name Pius

Number of Babies Named Pius

Born in the U.S. Since 1880

Posts that Mention the Name Pius

Pi-Names for Pi Day (3/14)

pi, pi day, pi namesIn mathematics, π (pi) — the ratio of the diameter of a circle to its circumference — is a constant roughly equal to 3.14159. That means today, 3/14, is π day!

What baby names start with “Pi-“? There are a bunch, but only a handful start with that same “pie” sound:

Other names that start with “Pi-” but a different sound include:


What’s your favorite Pi- name?

Babies Named for Mother Cabrini

Mother CabriniThe baby name Cabrini popped up on the Social Security Administration’s baby name list for the very first time in 1947:

  • 1949: unlisted
  • 1948: 6 baby girls named Cabrini
  • 1947: 6 baby girls named Cabrini [debut]
  • 1946: unlisted


Because in July of 1946, Frances Xavier Cabrini, a.k.a. Mother Cabrini, had been canonized by Pope Pius XII. This made her the first U.S. citizen to become a saint.

She’s remembered especially for her work with Italian immigrants. In fact, she was proclaimed “Patroness of Immigrants” by the same pope in 1950.

Cabrini had been born in 1850 in Lombardy, which at that time was part of the Austrian Empire. (It’s now in Italy.) She moved to the United States in 1889 and became a naturalized citizen in 1909. She died in Chicago in 1917.

The name Cabrini has appeared on the SSA’s list a dozen times since, mostly in the 1950s and 1960s. The most recent inclusion was in 2009, when it was given to 6 baby girls.

I’m not certain about the etymology of Cabrini, but one source suggests that it’s a variant of the surname Cabrera, which is derived from the Latin word capraria, meaning “pertaining to goats” or “place of goats” (capra is Latin for “goat”).

(The first native-born U.S. citizen to be canonized was Elizabeth Ann Seton.)

First Baby Born in Vatican City Named Pio

The Pope traditionally resides in Rome. (Makes sense, as he’s the Bishop of Rome.)

But one thing I didn’t realize until recently is that, while Rome has been around for centuries, Vatican City isn’t even 100 years old.

Vatican City, an enclave within Rome, has been an independent state only since mid-1929. It was established via treaty between the Holy See and Fascist Italy (under Mussolini).

How did I come to find this out? Via baby name, as usual.

Here’s the full text of an article I found in a newspaper published in June, 1929.

First Vatican City Baby Is Named Pius

The first baby born in the new papal state is named Pio (pius). He is the son of a papal servant.

Too bad there were no other details. Leaves me wondering if the name Pio was a tribute to the location, to the pope (Pius XI), or both.

Source: “First Vatican City Baby Is Named Pius.” San Jose News 19 Jun. 1929: 8.