Small aa
Small Aa is the name of this river:
- a tributary from the Aabach reservoir or Aabach in North Rhine-Westphalia, Germany, see Kleine Aa (Aabach)
- a tributary of the Sempachersee in the canton of Lucerne, Switzerland, see Kleine Aa (Sempachersee)
- Source river of the Aa of Weerijs in North Brabant, see Kleine Aa (Aa)
see also: List of waters with Aa
