Foams that are highly porous and possess low density, which makes them attractive materials for both science and engineering applications. Open-cell foams can be used as scaffolds for tissue engineering or catalyst supports whereas closed-cell foams have the application for sandwich structures or thermal insulations. In this study, we used a soybean oil derived renewable monomer to create gas-soybean oil foam and polymerise this foam to produce porous 3-D structure. We also produced nanocomposite foams by reinforcing the polymeric foams with bacterial cellulose nanofibrils (BC). BC is produced from the Acetobacter species and have the advantage of being free of wax, lignin, pectin and hemicellulose. It is also highly crystalline in nature, with a degree of crystallinity of approximately 90%. In addition to this, BC exists as a nano-sized material naturally (24 – 86 nm in diameter) without the need of nanofibrillation. It was found that BC possesses a Young’s modulus of 114 GPa. These properties of BC make BC an attractive nano-filler for nanocomposite materials. By reinforcing soybean oil derived polymeric foam with BC, greener polymer nanocomposite foams can be manufactured. This study investigates the potential of BC as nano-filler in soybean oil derived polymeric foams. It was found that with 0.5 wt% BC loading, the compression modulus of the polymer nanocomposite foams improved by 50%. The stability of the gas-soybean oil foam was significantly increased when BC was dispersed in the foam. The stability of the monomer foam, compression properties and the morphology of the polymer nanocomposite foams as a function of BC loadings are discussed in this paper.