S19

S19 may refer to:

Aircraft

• Letov Š-19, a Czechoslovak airliner
• Rans S-19 Venterra, an American light sport aircraft
• Short S.19 Singapore III, a British flying boat
• SIAI S.19, an Italian racing flying boat
• Sikorsky S-19, an experimental Russian biplane

Rail and transit

• S19 (Rhine-Ruhr S-Bahn), an S-Bahn line in Germany
• S19 (ZVV), a line of the Zürich S-Bahn in Switzerland
• Aioiyama Station, in Midori-ku, Nagoya, Aichi, Japan
• Mizue Station, in Edogawa, Tokyo, Japan
• Niki Station, in Yoichi District, Hokkaido, Japan,
• Tsuruhashi Station, in Osaka, Japan

Roads

• S19 Xinnong–Jinshanwei Expressway, China
• Expressway S19 (Poland)
• County Route S19 (California), United States

Other uses

• 40S ribosomal protein S19
• HMS Opossum (S19), a submarine of the Royal Navy
• SREC (file format), an ASCII encoding format for binary data developed by Motorola
• USS S-19 (SS-124), a submarine of the United States Navy
• British NVC community S19, a swamps and tall-herb fen community in the British National Vegetation Classification system