Life or tea
As a Hebrew name, it is a variant of Chai, meaning life. In other contexts, it can be a phonetic spelling of the word for tea found in many languages, or a diminutive of names like Charles or Chayton.
Less common today
Chay isn't in the latest US Top 1000. It last peaked at #3,680 in 1992.
Scottish yachtsman and rower who was the first person to sail non-stop westward around the world
American model and actress
US births per 5-year period, 1990βpresent (SSA data).