The Corn Exchange will have a market on all day and the evening festivities will start at 4pm.
We went back in time to find photos from previous years events - take a look and see if you recognise anyone.
1. Doncaster town centre Christmas lights switch on.
Doncaster town centre Christmas lights switch on.
2. Pupils from Park primary school turned on the Christmas lights at Doncaster Royal Infirmary along with Trust chairman Margaret Cox.
Pupils from Park primary school turned on the Christmas lights at Doncaster Royal Infirmary along with Trust chairman Margaret Cox.
3. Doncaster town centre Christmas lights switch on. Amelia Gaffney, four, with a snowman.
Doncaster town centre Christmas lights switch on. Amelia Gaffney, four, with a snowman.
4. Doncaster town centre Christmas lights switch on. Sophie Thorpe, seven and Chloe Smart,12.
Doncaster town centre Christmas lights switch on. Sophie Thorpe, seven and Chloe Smart,12.
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