Chamaecyparis obtusa (Japanese cypress, hinoki cypress or hinoki; Japanese: 檜 or 桧, hinoki) is a species of cypress native to central Japan but also found in North America after it was imported there.

It is a slow-growing tree which grows to 35 m tall with a trunk up to 1 m in diameter. The bark is dark red-brown. The leaves are scale-like, 2-4 mm long, blunt tipped (obtuse), green above, and green below with a white stomatal band at the base of each scale-leaf. The cones are globose, 8-12 mm diameter, with 8-12 scales arranged in opposite pairs. The related Chamaecyparis pisifera (Sawara Cypress) can be readily distinguished in its having pointed tips to the leaves and smaller cones.

A similar cypress found on Taiwan is treated by different botanists as either a variety of this species (as Chamaecyparis obtusa var. formosana) or as a separate species Chamaecyparis taiwanensis; it differs in having smaller cones (6-9 mm diameter) with smaller scales, and leaves with a more acute apex.

It is grown for its very high quality timber in Japan, where it is used as a material for building palaces, temples, shrines, traditional noh theatres, baths, table tennis blades and masu. The wood is lemon-scented, light pinkish-brown, with a rich, straight grain, and is highly rot-resistant.