Japanese refers to anything that originates in Japan. As a noun, it may also refer to:

Japanese literature

Japanese history

Empire of Japan, Japan's colonial period (1867-1945)

Japanese art

Japanese language, a Japonic language spoken mainly in Japan

Japanese cuisine

Japanese people, the ethnic group that identifies with Japan through culture or ancestry.

Japanese name

Culture of Japan:

Japanese poetry

Japanese folklore

Japanese mythology

Japanese writing system, consisting of kanji, hiragana, and katakana

Theatre of Japan

Japanese popular culture

Music of Japan, including J-pop

Religion in Japan, including Japanese Buddhism and Shinto