Globally, sustainability thinking has received widespread attention, but the approaches to integrating sustainability into the processes of developing new products are not very clear. This study was conducted to underscore the emerging sustainability practices deployed by small and medium-scale manufacturing entrepreneurs in Nigeria as they develop new products. It adopted the cross-sectional survey design which enabled the collection of primary data through the structured questionnaire from a sample of 364 manufacturing SME owners/operators. Data were analyzed using the mean, standard deviation, and graphical representation. The study found eight emerging sustainability practices adopted by manufacturing SMEs including sustainable product design, design for lifetime usage, design for quality, design for health and safety, product eco-labeling, design for recycling, eco-friendly design specification, and material waste reduction. Small and medium-scale manufacturers are encouraged to embrace sustainability in all facets of product design and development.