The Southeast Asian market has seen a growing demand for commercial fungal products, driven by their diverse applications in agriculture, medicine, and food production. These products derived from beneficial fungi are increasingly used as food, biofertilizers, biopesticides, and nutritional supplements. With a rising focus on sustainable farming and natural solutions, the region has embraced fungal products as ecofriendly alternatives to chemical inputs, particularly for crop production and crop protection. The growth is supported by the rich biodiversity of fungi in the area, alongside advancements in biotechnology, making fungal products a promising sector in Southeast Asia’s agro-industrial economic landscape. This chapter presents common commercial fungal-based agricultural products in the Southeast Asian market, as well as trends, demands, challenges, and opportunities for growth and expansion.