Queensland fathers walked from Brisbane's CBD to South Brisbane for the state's first Man with a Pram event to launch a national Dads Group Inc fundraising campaign.

Fathers with their toddlers and babies walked from the City Botanic Gardens to the Brisbane Convention and Exhibition Centre on Saturday, where a Dad's Group stall was held at the Pregnancy, Babies and Children's Expo.

Businesses, including Bakers Delight, supported the walk by supplying food and coffee at the start of the walk before the fathers set off.

Families took the streets for the Man With a Pram event to support fathers.

The not-for-profit organisation aims at connecting new fathers and improving men's health, preventing family violence and reducing isolation and suicide.