Mamlaka ya Bandari Tanzania (Kiingereza: Tanzania Ports Authority kifupi TPA) ni shirika la umma linalofanya kazi zake chini ya Wizara ya Miundombinu na Maendeleo, hiyo ndiyo inajukumu zima la kuongoza na kuendesha " bandari ya bahari na bandari ya maziwa ya nchini Tanzania. Mamlaka haya yapo mjini Dar es Salaam. Ni bandari mwanachama wa Jumuia ya Uongozaji wa Bandari za Kusini na Mashariki mwa Afrika. Bandari kuu za TPA zilizopo katika Bahari ya Hindi ni Dar es Salaam, Mtwara, na Tanga; bandari zingine ndogo zinatoa huduma katika pwani ni pamoja na Lindi, Kilwa Masoko, Mafia Kisiwani, Bagamoyo, Pangani na Kwale. Bandari ya Zanzibar inajitawala chini ya Shirika la Bandari la Zanzibar.. TPA, About TPA Ministry of Infrastructure Development, Front page. Jalada kutoka ya awali juu ya 2009-03-05. Iliwekwa mnamo 2009-06-11. Zanzibar Revolutionary Government, Zanzibar Port Corporation Usafiri wa Tanzania Tanzania Ports Authority Ministry of Infrastructure Development Archived 25 Desemba 2008 at the Wayback Machine. Surface and Marine Transport Regulatory Authority, of Tanzania Port Management Association of Eastern and Southern Africa