Kazusa-Kubo Station (上総久保駅, Kazusa-Kubo-eki) is a railway station operated by the Kominato Railway Company's Kominato Line, located in Ichihara, Chiba Prefecture, Japan.

It is 22.0 kilometers from the western terminus of the Kominato Line at Goi Station.

Kazusa-Kubo Station was opened on April 10, 1933.

Kazusa-Kubo Station has a single side platform serving bidirectional traffic.

There is a small rain shelter built on the platform, but no station building.