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Flex

fleks /flɛks/

At a glance

In short
Flex is a modern, dynamic name for boys, evoking strength and versatility. Unique and rare, it suggests athleticism and resilience.
U.S. rank 2025
Not in the 2025 data · last seen 2022 (#10,863)
Babies in 2022
6 (<0.01% of boys)
Peak
#10,799 in 2021
First recorded
2015

Meaning of Flex

The name Flex is a modern and dynamic choice for baby boys, pronounced as "fleks." Its origins are rooted in the English language, where it conveys a sense of strength and versatility, likely derived from the word "flex," meaning to bend or show off one's muscles. This name evokes images of athleticism and resilience, making it an appealing option for parents looking for a strong yet contemporary name. Though still relatively rare in the United States, with only a handful of occurrences each year—6 in 2022 and 5 in both 2021 and 2015—its uniqueness adds to its charm. Flex stands out as a distinctive and empowering name that carries both modern appeal and an inherent sense of capability.

How to pronounce Flex

English

Popularity of Flex in the U.S.

Flex was last recorded in the U.S. in 2022, ranked #10,863 with 6 babies. It peaked at #10,799 in 2021. It first appears in the records in 2015.

Bar and line chart: Flex in the U.S., 2015–2022. Bars: boys given the name each year, most 6 in 2021 and 6 in 2022. Line: rank among boy names, peak #10,799 in 2021, #10,863 in 2022.
  • Boys named Flex (left scale)
  • Rank among U.S. boy names (right scale, #1 at the top)
By year, 2015–2022. Source: SSA. Download: PNG · SVG
Year-by-year table, 2015⁠–⁠2022 3 rows
YearBabiesRankvs previous year
2022610,863▼ 64
2021610,799back
2015512,086new

Notable people named Flex

  • Felix Danilo Gomez Bosquez, known as Flex, is a Panamanian reggaeton singer.
  • Flex Wheeler — Kenneth Wheeler, known as Flex, is a retired American professional bodybuilder who won the Arnold Classic four times.
  • Flex Alexander is an American actor, comedian and dancer best known for playing single father Flex Washington on One on One.
  • Flex Lewis — James "Flex" Lewis is a retired Welsh bodybuilder who won seven consecutive 212 Mr. Olympia titles.