S61 may refer to:

Naval vessels

* , of the Royal Australian Navy * , of the Indian Navy *

Rail and transit

S61 (Long Island bus) Suffolk County Transit operates a number of bus routes in Suffolk County, New York, United States; a few in the town of Huntington, NY, Huntington are operated by Huntington Area Rapid Transit. The Villages of Patchogue and Port Jefferson, New Yor ...

* S61 (New York City bus) serving Staten Island * S61, a line of the Styria S-Bahn

Other uses

Blériot-SPAD S.61 The Blériot-SPAD S.61 was a French fighter aircraft developed in 1923. Designed by André Herbemont, the S.61 was a conventional biplane, abandoning the swept upper wing used by Herbemont in several previous designs. The prototype S.61 was evalu ...

, a French fighter aircraft *

Chopi language Chopi, also spelled ''Copi, Tschopi,'' and ''Txopi'', is a Bantu language spoken along the southern coast of Mozambique Mozambique (), officially the Republic of Mozambique ( pt, Moçambique or , ; ny, Mozambiki; sw, Msumbiji; ts, Muz ...

* County Route S61 (Bergen County, New Jersey) * Expressway S61 (Poland) * S61: Avoid release to the environment. Refer to special instructions/safety data sheet, a safety phrase * Sikorsky S-61, an American helicopter * S61, a postcode district in Rotherham, England {{Letter-NumberCombDisambig