Rainbow gudgeon

{{short description|Species of cyprinid fish}}

{{Speciesbox

| status =

| taxon = Sarcocheilichthys nigripinnis

| display_parents = 3

| authority = (Günther, 1873)

| synonyms = {{Specieslist

| Gobio nigripinnis | Günther, 1873

| Pseudogobio maculatus | Günther, 1888

| Georgichthys scaphignathus | Nichols, 1918

| Sarcocheilichthys morii | D. S. Jordan & Hubbs, 1925

| Sarcocheilichthys nigripinnis tungting | Nichols & Pope, 1927

}}

| synonyms_ref =

}}

The rainbow gudgeon (Sarcocheilichthys nigripinnis) is a species of freshwater ray-finned fish belonging to the family Gobionidae, the gudgeons.{{Cof genus|genus=Sarcocheilichthys|access-date=3 March 2025}} This species is found in China, Taiwan, and the Korean peninsula.{{FishBase|Sarcocheilichthys|nigripinnis|month=November|year= 2016}}