Kunrei-shiki (訓令式; also called "monbusho" system) is a romanization system for transcribing the Japanese language into the Latin alphabet (romaji). It is the system officially sanctioned by the Japanese ministry of education, although it is much less widespread in use than Hepburn romanization, and is mostly used within Japanese schools.

The system is a compromise between Hepburn, which stresses conformity with English phonology, and Nippon-shiki, which stresses one-to-one coorespondence with the kana system. The major differences between the three systems are:

KanaHepburnKunrei-shikiNippon-shiki
shisisi
jizizi
jizidi
zuzudu
fuhuhu
しゃshasyasya
しゅshusyusyu
しょshosyosyo
じゃjazyazya
じゅjuzyuzyu
じょjozyozyo
ぢゃjazyadya
ぢゅjuzyudyu
ぢょjozyodyo

Long vowels are represented by a circumflex in the modern system, although the older Kunrei-shiki specification called for macrons.