Siniichthys bleekeri is a species of freshwater ray-finned fish belonging to the family Xenocyprididae, the East Asian minnows or sharpbellies.

It was originally described by N. A. Warpachowski in 1887 but it may be a junior synonym of Ussuri sharpbelly (Siniichthys lucidus).

The fish reaches a size of up to 17.0 cm (6.7 in) long.

Its diet primarily consists of plants and detritus.

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