Sunraysia Highway (route B220) is a 330 kilometres (205 mi) north–south rural highway in western Victoria, linking Ouyen to the north-western Ballarat suburb of Mitchell Park,[5] and acts as a secondary route to Calder Highway, the main route between Melbourne and Mildura.

It serves a number of important industries in the region such as agriculture, viticulture, food processing, winemaking and tourism.

It meets Henty Highway in Lascelles, takes a more south-easterly direction through Birchip and meets Borung Highway in Donald and then Wimmera Highway in St Arnaud, before heads again in a southerly direction, meeting Pyrenees Highway in Avoca and heading again in a south-easterly direction until it eventually terminates at the interchange with Western Freeway on the north-western borders of Ballarat at Mitchell Park.

[8] The passing of the Highways and Vehicles Act of 1924[10] provided for the declaration of State Highways, roads two-thirds financed by the State government through the Country Roads Board.

The passing of the Road Management Act 2004[14] granted the responsibility of overall management and development of Victoria's major arterial roads to VicRoads: in 2013, VicRoads re-declared the road as Sunraysia Highway (Arterial #6700) between Calder Highway in Ouyen and Western Freeway at Mitchell Park in north-western Ballarat.