The Class D60 (D60形) is a Japanese 2-8-4 Berkshire wheel arrangement steam locomotive type created by rebuilding an earlier class to suit postwar requirements.

78 of the 380 successful, powerful prewar Class D50 2-8-2 Mikado locomotives were rebuilt and redesigned as D60s between 1951 and 1956 by Hideo Shima at the JNR Hamamatsu (Nagoya) Region, Nagano, (Nagoya) Region, and Tsuchizaki, (Sendai) Region workshops.

The cylinder diameter was reduced from 570 mm on the D50s to 550 mm to minimize wheel spin, and they were built to replace the older Class 9600s in 1951.

The spread of electrification and increasing numbers of diesel locomotives resulted in the first D60s being withdrawn from 1966.

A few examples based at Wakamatsu Depot soldiered on, hauling coal trains on the Chikuhō Mainline in northern Kyushu, and the last member of the class (D60 61) was finally withdrawn in August 1974.