Källby is a locality situated in Götene Municipality, Västra Götaland County, Sweden. It had 1,586 inhabitants in 2010.

A major industry and employer is Gunnar Dafgård AB, founded in 1937, which manufactures various cold dishes such as pan pizza, pies and ready meals.

Driving distances to:

• Lidköping 12 km,
• Götene 14 km,
• Gothenburg 144 km, and
• Stockholm 339 km 172 on Highway (South Lake)