Trotuș

{{Infobox river

| name = Trotuș

| native_name =

| native_name_lang =

| name_other = Tatros

| name_etymology =

| image = Targu Trotus - May 2013-002.JPG

| image_size =

| image_caption = The river Trotuș in Târgu Trotuș, Bacău County

| map = Trotuș.png

| map_size = 280px

| map_caption = Path of the river Trotuș [http://u.osmfr.org/m/386436/]

| pushpin_map =

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| subdivision_type1 = Country

| subdivision_name1 = Romania

| subdivision_type2 = Counties

| subdivision_name2 = Harghita, Bacău, Vrancea

| subdivision_type3 = Towns

| subdivision_name3 = Comănești, Onești, Adjud

| length = {{convert|162|km|mi|abbr=on}}

| width_min =

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| source1 = Ciuc Mountains

| source1_location =

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| mouth = Siret

| mouth_location = Adjud

| mouth_coordinates = {{coord|46|00|40|N|27|12|33|E|display=inline,title}}

| mouth_elevation =

| progression = {{RSiret}}

| river_system =

| basin_size = {{convert|4456|km2|abbr=on}}

| tributaries_left = Asău, Tazlău

| tributaries_right = Uz

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}}

File:Comanesti Trotus flood 2004.jpg (2004)]]

The Trotuș ({{langx|hu|Tatros}}) is a river in eastern Romania, a right tributary of the river Siret.{{GeoSource|RO|Annex7|905-906}}{{GeoSource|RO|Atlas|402-411|XII.1.69}}Ovidiu Gabor - {{cite web |url=http://www.riob.org/euro-riob/cracovie/27_sep_2004/costrecoverymechanism.pdf |title=Economic Mechanism in Water Management |access-date=2009-03-05 |url-status=dead |archive-url=https://web.archive.org/web/20090305111215/http://www.riob.org/euro-riob/cracovie/27_sep_2004/costrecoverymechanism.pdf |archive-date=5 March 2009 }}, map page 10 It emerges from the Ciuc Mountains in the Eastern Carpathians and joins the Siret in Domnești-Sat near Adjud after passing through Comănești and Onești in Bacău County.[http://www.e-calauza.ro/index.php?afiseaza=pluta_noua&rau=76 Trotuș], e-calauza.ro The total length of the Trotuș from its source to its confluence with the Siret is {{cvt|162|km}}.{{GeoSource|RO|Atlas|402-411|XII.1.69}}[http://www.rowater.ro/dasiret/planul%20de%20management%20al%20bazinului%20hidrografic%20sire/planul%20de%20management%20al%20spatiului%20hidrografic%20siret/plan%20management%20sh%20siret%20-%20vol.%20i.pdf Planul de management al spațiului hidrografic Siret], Administrația Națională Apele Române, page 17 Its basin area is {{convert|4456|km2|abbr=on}}.{{GeoSource|RO|Atlas|402-411|XII.1.69}}[http://www.insse.ro/cms/sites/default/files/field/publicatii/anuarul_statistic_al_romaniei_carte_en.pdf 2017 Romanian Statistical Yearbook], p. 13