Wearside (/ˈwɪərsaɪd/) is a built-up area in County Durham and Tyne and Wear, England.

Like other parts of the North East, Wearside and Sunderland were economically structured by the primary and secondary sector of the economy; with a great deal of the economy once dependent on ship building at Sunderland Docks and coal mining with large collieries such as Monkwearmouth Colliery, which declined rapidly during the mid 20th century, many areas have long been deprived with vast areas of unemployment as a result.

The city of Sunderland and parts of Wearside have been slowly rejuvenated over the years and industry is now largely based around call centres, although many areas such as Easington Colliery still face social problems today.

Serving Wearside, the Sunderland Echo newspaper is sold throughout the area and online.

Note that these are "Built-up areas subdivisions" as defined by the Office for National Statistics and will have different boundaries from the settlements after which they are named.