RATP may refer to:
Transportation:
*
RATP Group, or ', a public transport operator based in Paris, France
*
RATP Iași (), a transit operator responsible for public transportation in Iași, Romania
*
RATP Ploiești (), a transit operator responsible for public transportation in
Ploiești
Ploiești ( , , ), formerly spelled Ploești, is a city and county seat in Prahova County, Romania. Part of the historical region of Muntenia, it is located north of Bucharest.
The area of Ploiești is around , and it borders the Blejoi commun ...
, Romania
Computation:
*
Reliable Asynchronous Transfer Protocol (RATP), defined in RFC 916
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