Hillside is a residential suburb of the seaside town of Southport, England.

A popular method of transport is via the Hillside railway station, which opened in May 1926 links the suburb with Southport and Liverpool.

[3] The most famous landmark is the art deco style 'Round House' which was built as a house in 1924 by local builder Luke Highton, who fulfilled his dream of building a rotunda, complete with rooftop observatory, at the age of 74.

[5] The house has great views over the local area; Winter Hill can be seen to the north east and the gas rig in Liverpool Bay to the south west.

Hillside also has its own golf club which is split from the Royal Birkdale Golf Course by the local Birkdale and Ainsdale Hills Local Nature Reserve and in part, runs along the Liverpool - Southport Railway Line.