This list combines 1,306 spelling variations into 1,015 grouped names based on shared pronunciations. The most popular name in 1909 is John, given to 9,600 babies in total. Learn more about how this works.

Louis has the most spelling variations with 6 different spellings, while Arvil has the highest confusion index at 65.9%, indicating the greatest diversity in how parents choose to spell it.

When combining spelling variations, Irvin showed the biggest improvement, moving up 52 positions from 173 to 121, while Peter had the largest drop, falling 5 positions from 56 to 61.

Looking at trends, Haskell shows the strongest upward momentum (births in 1907–1909 are 257.43% higher compared to 1900–1909), while Dewey shows the steepest decline (66.49% lower). Compared to 1908, Kermit had the largest rank improvement, moving up 63 positions to rank #153, while Rance fell 55 positions to rank #262.