Yeşilköy
| Yeşilköy San Stefano | |
|---|---|
| Aerial view of the Yeşilköy (San Stefano) seafront | |
| Coordinates: 40°57′34″N 28°49′31″E / 40.95944°N 28.82528°E | |
| Country | Turkey | 
| Province | Istanbul | 
| District | Bakırköy | 
| Population  (2022) | 25,039 | 
| Time zone | UTC+3 (TRT) | 
Yeşilköy (Turkish pronunciation: [jeˈʃilcœj]; meaning "Green Village"; prior to 1926, San Stefano or Santo Stefano Greek: Άγιος Στέφανος, romanized: Ágios Stéfanos, Turkish: Ayastefanos) is an affluent neighbourhood (Turkish: mahalle) in the municipality and district of Bakırköy, Istanbul Province, Turkey. Its population is 25,039 (2022). on the Marmara Sea about 11 kilometres (7 mi) west of Istanbul's historic city centre. Prior to the rapid increase of Istanbul's population in the 1970s, Yeşilköy was a secluded village and sea resort.