Chatswood West is a suburb on the Lower North Shore of Sydney, in the state of New South Wales, Australia. Chatswood West is located 11 kilometres north-west of the Sydney central business district, in the local government areas of the City of Willoughby and City of Ryde. Chatswood is a separate suburb to the east. The locality of Chatswood located west of the Pacific Highway is informally known as West Chatswood, and should not be confused with the separate suburb of Chatswood West, nor should it be confused with the West Chatswood Post Office on Railway Street in the suburb of Chatswood. Chatswood West shares the same postcode as Chatswood which is 2067.

Chatswood West is located between the bigger suburbs of Chatswood and North Ryde. It straddles the Lane Cove River, occupying the valley flats and ridges leading down to the river.

Chatswood is believed to be named after the pet name "Chat" of the second wife of Richard Harnett (a pioneer of the district) and the original "wooded" nature of the area.

Chatswood West played a part in a famous Australian mystery, with the bodies of Dr Gilbert Bogle and Mrs Margaret Chandler being discovered on the banks of the Lane Cove River, 70 metres south of Fullers Bridge, on 1 January 1963.

Chatswood West split off from Chatswood to become a separate suburb on 20 January 2006. Chislehurst was a large historic house on Centennial Avenue.

Chatswood West is mainly residential, with small commercial areas on Fullers Road.

The residential buildings are overwhelmingly detached houses. The average house price in Chatswood West is $1,740,000 in 2016, and the average rental price is $700 per week. Many houses within Chatswood West, especially those in Greville Street, Colwell Crescent and Mooney Street look onto Chatswood Golf Club.

Chatswood West is served by Chatswood High School and Chatswood Public School. Nearby schools also include Mowbray Public School, which is located in Lane Cove North.

Facilities within Chatswood West includes Chatswood Golf Club.

There are very limited buses that connect the area with the Chatswood CBD, and other suburbs such as North Ryde. The main bus routes that connect Chatswood to Chatswood West are routes 255 and 256, operated by Busways.

According to the 2021 census, there were 1,521 residents in Chatswood West. 55.2% of people were born in Australia. The next most common country of birth was China at 11.2%. 60.9% of people only spoke English at home. Other languages spoken at home included Mandarin at 13.3%. The most common responses for religion in Chatswood West were No Religion 46.1%, Catholic 20.6% and Anglican 10.8%.

• Kenneth Slessor - poet, lived on the west side of the Pacific Highway
• Roger Woodward - pianist, lived on Peckham Street
• Errol Flynn - movie star, lived on McLean Avenue
• Tony Abbott - former prime minister of Australia, lived on West Parade

There are a number of parks and forest reserves such as Ferndale Park. There are walking tracks and a golf course. There are two entrances to Lane Cove National Park from Chatswood West, one on Lady Game Drive, and one on Delhi Road, next to Fullers Bridge.

Noteworthy indigenous flora includes the blackbutt, tree heath, celery wood, coachwood, native crabapple and hard corkwood. Ferns include jungle brake, fishbone water fern, filmy fern and necklace fern.

Fauna includes powerful owl, barking owl, Australian king parrot, brush turkey, eastern whipbird, satin bowerbird, eastern water dragon, emerald spotted frog, enamelled spider, red triangle slug, blue planarian, long-nosed bandicoot and marsupial mouse.

• 
  Crossing of Swaines Creek, Chatswood West
• 
  Coachwood - Ferndale Park
• 
  Forest scene - Ferndale Park
• 
  Tributary of Swaines Creek
• 
  Large blackbutt - Ferndale Park
• 
  Coachwood rainforest - Ferndale Park
• 
  Lilli pilli rainforest - Ferndale Park
• 
  Hawkesbury sandstone and rock felt fern (Pyrrosia rupestris)

33°48′08″S 151°09′47″E / 33.80210°S 151.16301°E / -33.80210; 151.16301