Single-use lightweight plastic bags will soon be banned across Victoria.

The Andrews government has committed to outlawing plastic bags following the lead of supermarket giants Coles and Woolworths who announced their own bans earlier this year.

The latest announcement comes after intense lobbying from environment groups who had been pressuring the Andrews government to adopt similar bans already introduced by other states.

The bans mean consumers will most likely need to bring their own shopping bags or buy other bags from retailers.