About 10.4% of first names in the United States begin with the letter A…
This makes A the most common initial of all popular first names in the US. By the way, the second most common initial of first names is J. U and X are the least common initials.
In the USA, the most common first names with an A are currently Alexander for boys and Ava for girls. Approximately 0.7 % of all newborn boys and as many as 0.9 % of girls are given this name respectively. Other popular first names with A are Aiden and Abigail. In the United States, the names Amaurys for boys and Ako for girls are also found occasionally but are actually very rare.