Tuolba
{{short description|River in Russia}}
{{Infobox river
| name = Tuolba
| image =
| image_caption =
| source1 =
| source1_elevation =
| mouth = Lena
| mouth_location =
| mouth_coordinates = {{coord|60.6031|124.2434|region:RU-SA_type:waterbody|display=it}}
| progression = {{RLena}}
| subdivision_type1 = Country
| subdivision_name1 = Russia
| length = {{convert|395|km|abbr=on}}
| discharge1_avg =
| basin_size = {{convert|15800|km2|abbr=on}}
| pushpin_map = Russia Sakha Republic
| pushpin_map_size =
| pushpin_map_caption= Mouth location in Yakutia, Russia
}}
The Tuolba ({{langx|ru|Туолба}}) is a river of Sakha Republic, eastern Russia. It is {{convert|395|km}} long, and has a drainage basin of {{convert|15800|km2}}.{{GVR|243165|Река Туолба}} Its source is in the Aldan Highlands and it is a right tributary of the Lena,{{cite book|editor1=R A French |editor2=Alan Wood|title=The Development of Siberia: People and Resources|publisher=Palgrave Macmillan/Springer|page=244|isbn=1349203785|doi=10.1007/978-1-349-20378-9}} The Tuolba runs through the village of Alexeyevka.