|Location||Oaklands Park, South Australia|
|Owner||The Westfield Group|
|No. of stores and services||327|
|No. of anchor tenants||9|
|Total retail floor area||133,227 m2 (1,434,043 sq ft)|
|No. of floors||3|
Westfield Marion is the largest shopping complex in Adelaide, South Australia, located in Oaklands Park, serving greater Southern Adelaide. It contains approximately 327 stores, with anchor tennants including David Jones, Myer, Harris Scarfe, Target, Kmart, BIG W, Woolworths, Coles and Event Cinemas. The centre houses all of Westfield's management in Adelaide, located in an 8 story office block to the east of the centre, as well as services including; legal, child care, health and dental clinic. It also houses the head office for Fellas Gifts. The office tower is located at the original mall where the food court is facing Diagnal Road. Nick Scali Furniture and Bunnings Warehouse are located to the west of the centre.
Westfield Marion was built in 1968 on a large expanse of land bordered by Sturt, Diagonal and Morphett Roads, and has seen three extensions in 1982, 1989 and 1997. The last extension saw the centre expand to a floorspace of roughly 119,000 m2.
Westfield Marion achieved major Australian firsts upon redevelopment in 1997 as the first shopping centre to have all three department stores, as well as all three discount department stores.
There is a 9.1 metre high replica of the Statue of Liberty above the upper-floor external concourse, originally promoting the "New York Bar and Grill", but remains despite a change of lease.
Westfield have released plans for a $350 million expansion of Westfield Marion
- 65 new stores over a new two level mall
- 19,200sqm of new retail floor space
- 10 restaurants and cafes facing Diagonal Road
- Expanded foodcourt
- 1000 extra car parking space over three levels
The expansion will be done over two stages, the first being the ground floor additions and about 650 carparks. While Stage two will consist of the new upper-level mall, expanded food court and 400 carparks. The expansion plans have already been approved by the City of Marion's development assessment panel, with Stage one commencing in late 2013. 
The Marion Interchange is a bus interchange with connections to city-centre, Flinders University, Hallett Cove, Golden Grove, Blackwood, Aberfoyle Park, Noarlunga Centre and Port Adelaide. It is also about 500 m from the Oaklands railway station on the Noarlunga Centre railway line, which has been redeveloped by the South Australian government into a transport interchange. 
Westfield Marion viewed from Bedford Park
- Westfield Marion Portfolio
- Marion-Oaklands Transport Interchange, Government of SA, accessed 2006-08-12