Cedrus deodara, the deodar cedar, Himalayan cedar, or deodar, is a species of cedar native to the Himalayas.

It is a large evergreen coniferous tree reaching 40–50 metres (131–164 feet) tall, exceptionally 60 m (197 ft) with a trunk up to 3 m (10 ft) in diameter. It has a conic crown with level branches and drooping branchlets.

The leaves are needle-like, mostly 2.5–5 centimetres (1–2 inches) long, occasionally up to 7 cm (3 in) long, slender (1 millimetre or 1⁄32 in thick), borne singly on long shoots, and in dense clusters of 20–30 on short shoots; they vary from bright green to glaucous blue-green in colour. The female cones are barrel-shaped, 7–13 cm (2+3⁄4–5 in) long and 5–9 cm (2–3+1⁄2 in) broad, and disintegrate when mature (in 12 months) to release the winged seeds. The male cones are 4–6 cm (1+1⁄2–2+1⁄4 in) long, and shed their pollen in autumn.

The bark of Cedrus deodara contains large amounts of taxifolin. The wood contains cedeodarin, ampelopsin, cedrin, cedrinoside, and deodarin (3′,4′,5,6-tetrahydroxy-8-methyl dihydroflavonol). The main components of the needle essential oil include α-terpineol (30.2%), linalool (24.47%), limonene (17.01%), anethole (14.57%), caryophyllene (3.14%), and eugenol (2.14%). The deodar cedar also contains lignans and the phenolic sesquiterpene himasecolone, together with isopimaric acid. Other compounds have been identified, including (−)-matairesinol, (−)-nortrachelogenin, and a dibenzylbutyrolactollignan (4,4',9-trihydroxy-3,3'-dimethoxy-9,9'-epoxylignan).

The botanical name, which is also the English common name, is derived from the Sanskrit term devadāru, which means "wood of the gods", a compound of deva "god" and dāru "wood and tree".

The species natively occurs in East-Afghanistan, South Western Tibet, Western Nepal, Northern Pakistan, and North-Central India.

It grows at elevations of 1,500–3,200 m (5,000–10,000 ft).

"Deodar is a wind-pollinated monoecious species".