Editing AA (section)

== Rivers ==
=== Belgium ===
*[[Aa (Nete)]], in the province of Antwerp, tributary of the [[Nete (river)|Nete]]

=== France ===
*[[Aa (France)]]

=== Germany ===
*[[Aabach (Afte)]], formerly Große Aa, North Rhine-Westphalia
*[[Aa (Möhne)]], North Rhine-Westphalia
*[[Aa (Nethe)]], North Rhine-Westphalia
*[[Aa (Werre)]], North Rhine-Westphalia
*[[Bocholter Aa]], North Rhine-Westphalia
*[[Dreierwalder Aa]], North Rhine-Westphalia
*[[Kleine Aa (Aabach)]], a tributary of the Aabach in North Rhine-Westphalia
*[[Große Aa]], a tributary of the Ems in Lower Saxony
*[[Große Aa (Aabach)]], a tributary of the Aabach in North Rhine-Westphalia
*[[Münstersche Aa]], North Rhine-Westphalia
*[[Schaler Aa]], Lower Saxony and North Rhine-Westphalia
*[[Speller Aa]], Lower Saxony and North Rhine-Westphalia
*[[Steinfurter Aa]], North Rhine-Westphalia

=== Netherlands ===
*[[Aa (Meuse)]], North Brabant
*[[Aa of Weerijs]], North Brabant
*[[Drentsche Aa]], Drenthe and Groningen
* {{ill|Ruiten Aa|nl}}, a river in [[Westerwolde (region)|Westerwolde]], Groningen

=== Switzerland ===
*[[Aabach (Aare)]], a tributary of the Aare, in Aargau canton
*[[Aabach (Greifensee)]] or Ustermer Aa, in canton of Zürich
*[[Aabach (Obersee)]], a tributary of Obersee (Zürichsee), in canton of St. Gallen
*[[Aabach (Seetal)]], in the cantons of Lucerne and Aargau
*[[Chli Aa (Sempachersee)]], a tributary of Lake Sempach in the canton of Lucerne
*[[Engelberger Aa]], in the cantons of Obwalden and Nidwalden
*[[Gross Aa (Sempachersee)]], a tributary of Lake Sempach in the canton of Lucerne
*[[Mönchaltorfer Aa]], a tributary of Greifensee in canton of Zürich
*[[Sarner Aa (river)]], Obwalden, tributary of Lake Lucerne

=== Latvia ===
*[[Gauja]], Latvia, formerly known as ''Livländische Aa''
*[[Lielupe]], Latvia, formerly known as ''Kurländische Aa''