Sinclair

Did you know?

A few things about Sinclair you might not know, from US birth records and Wikipedia. Handy for convincing a partner, or a grandparent.

⭐ Famous Sinclair

Sinclair Lewis

American writer and playwright (1885–1951)

Choose Sinclair and your child shares a first name with Sinclair Lewis, an American writer and playwright. A ready-made answer when someone asks “Sinclair, like who?” Sinclair Lewis's Wikipedia article is available in 120 languages, a good sign of just how widely known they are.

Read about Sinclair Lewis on Wikipedia ↗ (opens in a new tab)

Photo: Oscar White, Pach Brothers Studio, Public domain (opens in a new tab), via Wikimedia Commons

• 👶How commonAbout 1 in every 55,556 baby girls born in the US in 2025 was named Sinclair, 29 babies in all. In a typical school of 500 kids, your Sinclair would very likely be the only one.
• 📜HistorySinclair first shows up in US birth records in 1900, the first year at least 5 babies got it. It has been in use for 125 years since.
• 🏆Best yearIts best year was 1994, when it reached #4,521.
• 📈Then vs nowSinclair is 2.2× more common today than it was in 2000. In 2000 it was given to about 1 in 120,482 baby girls; in 2025, about 1 in 55,556.
• 🚀TrendSinclair has climbed 5,589 places in the US rankings over the last five years and now sits at #4,661. Fast risers like this often keep climbing, so expect to hear it more.
• ⚖️Boy or girlSinclair is given to both boys and girls: 67% of the 43 babies named Sinclair in 2025 were girls. That makes it one of the names that truly works for either.
• 💬MeaningIn Scottish, Sinclair means “from Saint-Clair”.

About the name Sinclair

Sinclair is a gender-neutral name of French origin meaning “from Saint-Clair”. It has 8 letters and 2 syllables, starting with S and ending in “-air”. US birth records list Sinclair for girls from 1989 to 2025, in 35 of those 37 years. Its best year was 1994, when it ranked #4,521 among girl names. In 2025 it ranked #4,661, with 29 babies. Of the 43 US babies named Sinclair in 2025, 67% were girls and 33% were boys.

Origin:French names