Boy’s name · English

Fitzwilliam

How to say it: fits-WIL-yum · /fɪtsˈwɪljəm/

From Norman French 'fitz' son of + William - aristocratic surname, famed by Austen's Mr. Darcy.

Fitzwilliam was the 11,492nd most popular boys’ name in the United States in 2025, given to 5 babies (Social Security Administration). The 2020s are its busiest decade so far, its births are down about 23% in ten years, and it is projected to slip to #12,760 by 2030.

Updated · SSA 2025 data, published May 2026 · How we compute these figures

#11,492for boys in 2025
1 in 663,068US babies
5born in 2025
#12,760projected for 2030
2020sits peak decade
under 1 in 200chance a classmate shares it

Key facts

Key facts about Fitzwilliam
Rank among boys’ names, 2025#11,492
Babies born in 20255
Share of births1 in 663,068
Peak decade2020s
Change over 10 years−23%
Projected rank for 2030 (estimate)#12,760

Sources: Social Security Administration (SSA). How we compute these figures.

Its life, decade by decade

Fitzwilliam is a newcomer: almost all of its history is from the last forty years.

1900195020002020–25
Peak: 4 per million births, 2020s.

What goes with it

Nicknames

  • Fitz
  • Will
  • Liam

Honouring a Fitzwilliam in the family

In the classroom

In a class of 25 children born in 2025, the chance that another child is called Fitzwilliam is about under 1 in 200.

Around the world

This spelling is used in English.

Good to know

  • Fitzwilliam is Mr Darcy's first name in Austen's 1813 Pride and Prejudice; as a first name it reads as an Austen/literary reference.

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