The Giannini surname
In the 2010 U.S. Census, 3,499 people carried this name — #9,301 among all U.S. surnames, about 1 in every 84,000 people counted. That is down 1% from 3,543 in 2000.
What the name means
The meaning of the Giannini surname
A surname transferred from the given name.
From a hypocoristic form of the personal name Giovanni (“John”).
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Giannini» (Italian), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Argentina’s national register
At least 1,693 people named Giannini live in Argentina.
RENAPER only publishes a name in a province when more than ten people there share it, so the real number is higher. Most of them live in Buenos Aires Province.
Where it concentrates, on the mapWhere they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In France’s civil register
France’s register of deaths holds 470 people named Giannini.
134 of them were born outside France. Those born in France came from 33 départements, most often Bouches-du-Rhône.
Where it concentrates, on the mapWhere they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
In Switzerland’s population statistics
370 people named Giannini live in Switzerland.
They live in 17 of Switzerland’s 26 cantons, most of all in Ticino.
Where it concentrates, on the mapWhere they live today
Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
In Belgium’s population register
At least 55 people named Giannini live in Belgium.
Statbel only publishes a name in a municipality when five or more people there share it, so the real number is higher. Most of them live in Luxembourg Province.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
In the Nordic population registers
33 people named Giannini is counted in Sweden.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published.
Counted, by country
Own calculations based on data from Statistics Sweden (SCB), surnames with at least two bearers, 31 December 2022 — CC BY 4.0 (names with 20 or more bearers shown).
In print
Giannini in American newspapers,
1919–1929.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 9,302 pages in all carry the name.
Who carried it
People named Giannini,
with a public archive behind them.
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Margaret Giannini d. 2021 · physician -
Pietro Giannini 1740–1808 · mathematician -
Giovanni di Causetta Giannini 1250–1400
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Tommaso Giannini 1556–1638 · physician
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Carlo Giannini 1637–1703 · bookseller
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Giovanni Matteo Giannini 1650–1650 · writer
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Giannini.
- Giangreco 396 · U.S. census
- Giani 207 · U.S. census
- Gianini 124 · U.S. census
- Giannelli 893 · U.S. census
- Giannetti 1,120 · U.S. census
- Gianni 988 · U.S. census
- Giannone 1,733 · U.S. census
- Giannoni 201 · U.S. census
- Giannotti 1,008 · U.S. census
- Gianola 184 · U.S. census
- Gianoli 145 · U.S. census
- Gianotti 469 · U.S. census
When the index is not enough
This page says where Giannini is.
A volume says what happened to it.
Every page in the index is free and stays free. The Heritage Volume is the long form: the full paper trail, the arms, the crossing — bound, and yours.