St. Mary’s Transport Sacco is a public service vehicle (PSV) transport cooperative (SACCO) operating in Nairobi, Kenya. It is part of the organized matatu SACCO system that manages passenger transport routes, vehicles, and drivers under a collective cooperative structure. The SACCO is commonly associated with routes serving areas such as Lang’ata, South C, Nairobi West, CBD, and surrounding estates, providing daily commuter services within Nairobi.
Like other transport SACCOs, it operates under NTSA (National Transport and Safety Authority) regulations, coordinating vehicle ownership, route allocation, fares, and fleet management through member operators. It is known for structured matatu operations and scheduled commuter services within the city.