Speller Aa

{{short description|River in Germany}}

{{Expand German|topic=geo|date=September 2011|Speller Aa}}

{{Infobox river

| name = Speller Aa

| image =

| image_size =

| image_alt =

| image_caption =

| map =

| map_size =

| map_alt =

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| source1_location =

| mouth_location = Große Aa

| mouth_coordinates = {{coord|52.4202|7.3763|type:river|display=it}}

| progression = {{RGroße Aa}}

| subdivision_type1 = Country

| subdivision_name1 = Germany

| subdivision_type2 = States

| subdivision_name2 = {{ubl|North Rhine-Westphalia|Lower Saxony}}

| length = {{convert|49.2|km|abbr=on}} {{GeoQuelle|DE-NW|GSK3C}}

| source1_elevation =

| mouth_elevation =

| discharge1_avg =

| basin_size = {{convert|371|km2|abbr=on}} {{GeoQuelle|DE-NW|GSK3C}}

| river_system =

| tributaries_left =

| tributaries_right =

}}

Speller Aa is a river of North Rhine-Westphalia and Lower Saxony, Germany. It flows into the Große Aa near Lünne.

The upper reaches of the Speller Aa have other names, from the source to the mouth Stollenbach, Mettinger Aa, Recker Aa, Hopstener Aa, Speller Aa.https://www.tim-online.nrw.de/tim-online2/
Select "Koordinateneingabe" from the drop-down menu at the top left, then enter:

• 52.28478;7.87214 for the Stollenbach source
• 52.313710;7.816660 for Stollenbach / Mettinger Aa
• 52.355843;7.760330 for Mettinger Aa / Recker Aa
• 52.362282;7.651620 for Recker Aa / Hopstener Aa
• 52.361785;7.475129 for Hopstener Aa / Speller Aa
• 52.420253;7.376283 for the Speller Aa mouth