S21 or S-21 may refer to:
- De Schelde S.21, a proposed Dutch fighter
- Rans S-21 Outbound, an American homebuilt aircraft
- SIAI S.21, an Italian racing flying boat
- Sikorsky S-21, the first four-engine aircraft in the world
- Short S.21 Maia, a British flying boat mother ship
- Spalinger S.21, a Swiss training glider
- Sukhoi-Gulfstream S-21, a proposed American business jet
- Sunriver Airport in Sunriver, Oregon
- S21 (Berlin), a planned S-Bahn line in Berlin, Germany
- S21 (RER Fribourg), an S-Bahn line in the canton of Freibourg, Switzerland
- S21 (ZVV), an S-Bahn line in the cantons of Zürich and Zug in Switzerland
- Stuttgart 21, a transportation and urban project in Stuttgart, Germany
- S21, a line of the Hamburg S-Bahn
- Ginzan Station, in Niki, Hokkaidō, Hokkaidō, Japan
- Moto-Yawata Station, in Ichikawa, Chiba, Japan
- Shin-Fukae Station, in Osaka, Japan
- Tokushige Station, in Midori-ku, Nagoya, Aichi, Japan
- S21 Guangzhou–Huidong Expressway, China
- County Route S21 (California), United States
- ARA Santa Fe (S-21), of the Argentine Navy
- Brazilian submarine Tonelero (S21)
- HMS Onyx (S21), of the Royal Navy
- INS Kalvari (S21), of the Indian Navy
- INS Karanj (S21), of the Indian Navy
- USS S-21 (SS-126), of the United States Navy
- 40S ribosomal protein S21
- British NVC community S21, a swamps and tall-herb fens community in the British National Vegetation Classification system
- Forward voltage gain or transmission coefficient of a two-port network
- S-21: The Khmer Rouge Killing Machine, a 2003 documentary film
- S21: When using do not smoke, a safety phrase
- Samsung Galaxy S21, a series of smartphones
- Security Prison 21, now the Tuol Sleng Genocide Museum in Cambodia
- Serbia 21, a political organization in Serbia
- s21 notice, in England & Wales, from a landlord instructing tenants to leave
This
disambiguation page lists articles associated with the same title formed as a letter–number combination.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
S21 or S-21 may refer to:
- De Schelde S.21, a proposed Dutch fighter
- Rans S-21 Outbound, an American homebuilt aircraft
- SIAI S.21, an Italian racing flying boat
- Sikorsky S-21, the first four-engine aircraft in the world
- Short S.21 Maia, a British flying boat mother ship
- Spalinger S.21, a Swiss training glider
- Sukhoi-Gulfstream S-21, a proposed American business jet
- Sunriver Airport in Sunriver, Oregon
- S21 (Berlin), a planned S-Bahn line in Berlin, Germany
- S21 (RER Fribourg), an S-Bahn line in the canton of Freibourg, Switzerland
- S21 (ZVV), an S-Bahn line in the cantons of Zürich and Zug in Switzerland
- Stuttgart 21, a transportation and urban project in Stuttgart, Germany
- S21, a line of the Hamburg S-Bahn
- Ginzan Station, in Niki, Hokkaidō, Hokkaidō, Japan
- Moto-Yawata Station, in Ichikawa, Chiba, Japan
- Shin-Fukae Station, in Osaka, Japan
- Tokushige Station, in Midori-ku, Nagoya, Aichi, Japan
- S21 Guangzhou–Huidong Expressway, China
- County Route S21 (California), United States
- ARA Santa Fe (S-21), of the Argentine Navy
- Brazilian submarine Tonelero (S21)
- HMS Onyx (S21), of the Royal Navy
- INS Kalvari (S21), of the Indian Navy
- INS Karanj (S21), of the Indian Navy
- USS S-21 (SS-126), of the United States Navy
- 40S ribosomal protein S21
- British NVC community S21, a swamps and tall-herb fens community in the British National Vegetation Classification system
- Forward voltage gain or transmission coefficient of a two-port network
- S-21: The Khmer Rouge Killing Machine, a 2003 documentary film
- S21: When using do not smoke, a safety phrase
- Samsung Galaxy S21, a series of smartphones
- Security Prison 21, now the Tuol Sleng Genocide Museum in Cambodia
- Serbia 21, a political organization in Serbia
- s21 notice, in England & Wales, from a landlord instructing tenants to leave
This
disambiguation page lists articles associated with the same title formed as a letter–number combination.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
If an internal link led you here, you may wish to change the link to point directly to the intended article.