About one in twentyfive boys' first names in the United States begins with the letter B…
This makes the initial B a little more common than average. On average, each letter appears as an initial in about 3.8 % of all boys' names, given that there's 26 letters in the English alphabet. Of course, first letters aren't (exactly) evenly distributed as initials: On the contrary, some initials are especially common, while others are really rare. The most common initials among boys' first names in the United States are J and A, while fewer
boys' names begin with the letters U and X.