Kosugi Station (小杉駅, Kosugi-eki) is a railway station on the Ainokaze Toyama Railway Line in Imizu, Toyama, Japan, operated by the third-sector railway operator Ainokaze Toyama Railway.

Kosugi Station is served by the 100.1 km Ainokaze Toyama Railway Line, and is 30.2 kilometres from the starting point of the line at Kurikara.

With the privatization of JNR on 1 April 1987, the station came under the control of JR West.

From 14 March 2015, with the opening of the Hokuriku Shinkansen extension from Nagano to Kanazawa, local passenger operations over sections of the Hokuriku Main Line running roughly parallel to the new shinkansen line were reassigned to different third-sector railway operating companies.

[1] From this date, Kosugi Station was transferred to the ownership of the third-sector operating company Ainokaze Toyama Railway.