Syngnathoides biaculeatus has a wide geographic range. It has been recorded in surveys and taxonomic overviews from the Red Sea and the African east coast to
Australian Marine Protected Areas in Which Has Been Recorded (Pogonoski et al. 2002): In
Museum Records Worldwide: in Australia, there are 106 specimens (standard length 100-288 mm), collected from a depth range of 0 to 5 m, ranging in geographical distribution from the Timor Sea, Northern Territory south-eastwards to Batemans Bay (35°44’S), New South Wales on the east coast of Australia, and from Ashmore Reef (12°13’S) southwards to Geraldton (28°46’S) on the west coast of Australia. Outside
Other museum records are available from FishBase and the Ocean Biogeographic Information System (OBIS) and include specimens collected from Suva Harbor in Fiji, Singapore, Kenya, and Yemen (Froese and Pauly 2007, Ocean Biogeographic Information System 2007). Specimens listed in Fishbase/OBIS have collection dates from 1828 to 2004.