This contribution presents the preliminary results of an extensive experimental study on the bond behaviour between GFRP reinforcing bars and high-strength foamed concrete. The research addresses a gap in the literature by investigating foamed concrete made with traditional aggregates and an air-void system created by a foaming agent. This foaming agent alters the concrete microstructure, potentially affecting bond behaviour. The concrete mix was carefully designed for optimal compaction of dry aggregates. Superplasticizers allowed for a low water-to-cement ratio, essential for achieving high strength. Despite having about half the density of traditional concrete, the foamed concrete retains similar mechanical properties, offering significant weight reduction benefits. Specimens were tested for pull-out to evaluate the bond vs. slip behaviour and the bond strength of GFRP reinforcing bars, focusing on the influence of the concrete dry density. Results show that the bond strength reduces by decreasing the density of concrete. Additionally, two distinct failure modes were recorded: splitting failure, for higher densities, characterised by the breakage of the concrete, and pull-out failure, with slippage of the GFRP reinforcing bar in the concrete matrix, peculiarity of specimens characterized by low densities. Given the potential structural applications of foamed concrete, ensuring a reliable bond between reinforcement and concrete is essential for stress transfer and overall structural safety and durability.