T18

T18 may refer to:

Aircraft

• Slingsby T.18 Hengist, a British glider
• Thorp T-18, an American homebuilt aircraft

Armoured vehicles

• T18 Boarhound, an American armoured car
• T18 Howitzer Motor Carriage, an American self-propelled gun
• T-18 tank, a Soviet tank

Rail and transit

Lines

• Annapolis Road Line, of the Washington Metropolitan Area Transit Authority
• T18 line, of the Stockholm Metro
• T17/18 Beijing-Mudanjiang Through Train

Rolling stock

• GER Class T18, a British steam locomotive
• Prussian T 18, a tank locomotive
• Tatra T18, a Czehoslovak draisine

Stations

• Hara Station (Nagoya), Aichi, Japan
• Hibarigaoka Station (Hokkaido), Sapporo, Hokkaido, Japan
• Orange Town Station, Sanuki, Kagawa Prefecture, Japan
• Tenjimbashisuji Rokuchōme Station, Osaka, Japan
• Urayasu Station (Chiba), Japan

Other

• Edwards syndrome, or trisomy 18
• Estonian national road 18
• T18 road (Tanzania)
• German torpedo boat T18
• Toyota T-18, a Toyota Corolla model sold in Australia