Christie Downs, South Australia
{{Use Australian English|date=August 2019}}
{{Use dmy dates|date=October 2021}}
{{More citations needed|date=June 2011}}
{{Infobox Australian place | type = suburb
| name = Christie Downs
| city = Adelaide
| state = sa
| image =
| caption =
| coordinates = {{Coord|-35.129|138.497|format=dms|type:city_region:AU-SA|display=title}}
| coords_ref =
| lga = City of Onkaparinga
| postcode = 5164
| pop =
| area =
| region = Southern Adelaide{{cite web|title=Southern Adelaide SA Government region|url=http://www.sa.gov.au/__data/assets/pdf_file/0016/24082/Southern_Adelaide_SA_Government_region.pdf|publisher=The Government of South Australia|accessdate=17 April 2017|archive-date=27 March 2019|archive-url=https://web.archive.org/web/20190327054812/https://www.sa.gov.au/__data/assets/pdf_file/0016/24082/Southern_Adelaide_SA_Government_region.pdf|url-status=dead}}
| county = Adelaide{{cite web|title=Search result for "County of Adelaide, CNTY" with the following data sets selected – "Counties" and "Local Government Areas" |url=http://location.sa.gov.au/viewer/ |work=Property Location SA Map Viewer |publisher=Government of South Australia |accessdate=24 April 2017}}
| stategov =Reynell{{cite web|title=District of Reynell Background Profile|publisher=ELECTORAL COMMISSION SA|accessdate=28 July 2015|url=http://www.ecsa.sa.gov.au/component/edocman/?view=document&id=576|date=2014}}
| fedgov =
| near-nw = Lonsdale
| near-n = Lonsdale
| near-ne = Morphett Vale
| near-w = Christies Beach
| near-e = Morphett Vale
| near-sw = Christies Beach
| near-s = Noarlunga Centre
| near-se = Hackham West
| dist1 =
| location1=
}}
Christie Downs is a suburb in southern Metropolitan Adelaide within the city of Onkaparinga, South Australia. It has a unique postcode of 5164, and is adjacent to the suburbs of Christies Beach to the west, Noarlunga Centre to the south, Morphett Vale to the east and Lonsdale to the north.
The area was named after Lambert Christie, who was one of the original European settlers in the area. The area continued to be mainly farming land until the late 1950s when large portions were purchased by the South Australian Housing Trust. Since then the suburb has steadily grown to have almost 2500 households.
The suburb is served by Christie Downs railway station on the Seaford railway line.