What does Haydn mean?
Haydn /haydn/ [1 syll.] as a boys' name is of Old English origin, and the name Haydn means "hedged valley". Haydn is a version of Hayden (Old English): place name. Compare surname Heydon.
How popular is Haydn?
Haydn is a rare first name for men. Haydn is an equivalently unique surname too for all people. (2000 U.S. Census)
Below is a charted comparison of the usage of Haydn and affiliated names. Prominent varying forms of Haydn (not ranked) listed in the Top 1000 are Hayden (#142 a year ago) and Haden. These boy names reached the apex of their popularity in the year 2003 (usage of 0.573%) and are now much less widespread (usage 0.429%, ▼25.1%), with the form Haden becoming less fashionable. Hayden (#142) is the most contemporarily stylish name for newborns in this list, and there is a revival in birth name popularity for this name. (2014 Birth Statistics)