3/8
# 3/8

3/8 or ⅜ may refer to:

* 3rd Battalion, 8th Marines
* the calendar date March 8 (United States)
* the calendar date August 3 (Gregorian calendar)
* the fraction (mathematics), three eighths or 0.375 in decimal
* a time signature
* 3/8 (album), a 2007 album by Kay Tse
