Samangan (Persian: سمنگان) may refer to:

• Samangan Province of Afghanistan
• Aybak, Samangan, the capital of Samangan Province

• Samangan, Kermanshah
• Samangan-e Olya, Kermanshah Province
• Samangan-e Sofla, Kermanshah Province
• Samangan, Fars
• Samangan, Firuzabad, Fars Province
• Samangan, Quchan, Razavi Khorasan Province
• Samangan, Taybad, Razavi Khorasan Province
• Samangan, Torbat-e Jam, Razavi Khorasan Province
• Samangan railway station, a station in Markazi Province on the Rahahane Gharb line
• Sirjan, previously Samangan, capital of Sirjan County, Kerman Province