Over the past 110 years, 21 773 girls have been named Trudy. The name Trudy ranks 859th in the United States among the most common names for girls. For the first time more than ten times newborns were named Trudy in 1910. The peak of popularity of the name Trudy came in the 1940s and 1950s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.