The most popular baby names are different in the past several years. Today Emma, Olivia, Sophia, Ava, Isabella ranked the top girl names, and Noah, Liam, Mason, Jacob, and William raned the top boy names. But in 1900s, the most popular boy names are James, John, Robert, Michael, and William. Mary, Patricia, Jennifer, Elizabeth, and Linda are the most popular girl names. Whether you would like to choose a popular name for your baby, you could check out our collection of USA baby names for options.