Bahrs Scrub is a rural/residential locality four km south-west of Beenleigh. It is thought to have been named after a German settler, Carl Wilhelm Bahr (born 1840) or his son, Wilhelm Bahr (1860-1941).
The eastern boundary of Bahrs Scrub is the Beenleigh-Beaudesert Road, which adjoins the suburbs of Windaroo and Mount Warren Park. The Windaroo Creek, a tributary flowing east into the Albert River, has its headwaters in Bahrs Scrub. Urban development has spread from Windaroo into this part of Bahrs Scrub. It includes the Windaroo High School (1994) and the linear Albert Valley Park along the creek. A later housing area in Bahrs Scrub is the Windaroo Outlook estate on the site of a former Animal Research Institute.
Further west in Bahrs Scrub there are rural/residential acreages, some with remnant rainforest scrub. The Buccan Conservation Park is just beyond Bahrs Scrub's western boundary.
Bahrs Scrub's census population in 2006 was 1148. In 2008 it was transferred from Gold Coast to Logan City Council.