Wedge Island may refer to:
;Australia:
*
Wedge Island (South Australia)
**
Wedge Island, South Australia
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Wedge Island is a locality in South Australia located on Wedge Island at the mouth of Spencer Gulf. It is located about west of the Adelaide city centre.
Its boundaries were created in 2014 for the purpose of providing property ad ...
, a locality
*
Wedge Island (Tasmania)
The Wedge Island, part of the Tasman Island Group, is an island with an area of lying close to the south-eastern coast of Tasmania, Australia. The island is located in Storm Bay, situated off the Tasman Peninsula.
The island is formed of Ju ...
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Wedge Island (Western Australia)
Wedge Island is a 400-metre (1,300 ft) long wedge shaped island north of Lancelin and south of Cervantes on the Western Australian coast. The island is located just south of “the point” and approximately 15km south-east of an informal settl ...
;Canada:
*
Wedge Island (Nova Scotia)
Wedge Island is a tidal island near Liscomb, Nova Scotia. Geologically
Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which ...
*
Wedge Island (Nunavut)
;Fictional:
* A small island nearby the larger Wuhu Island in the video game ''
Wii Sports Resort''
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