This list combines 2,634 spelling variations into 1,008 grouped names based on shared pronunciations. The most popular name in 1921 is Mary, given to 74,139 babies in total. Learn more about how this works.

Catherine has the most spelling variations with 21 different spellings, while Elin has the highest confusion index at 86.2%, indicating the greatest diversity in how parents choose to spell it.

When combining spelling variations, Margarete showed the biggest improvement, moving up 172 positions from 559 to 387, while Gloria had the largest drop, falling 7 positions from 102 to 109.

Looking at trends, Bette shows the strongest upward momentum (births in 1919–1921 are 536.46% higher compared to 1912–1921), while Gretchen shows the steepest decline (22.57% lower). Compared to 1920, Elwanda had the largest rank improvement, moving up 96 positions to rank #478, while Charlie fell 45 positions to rank #425.