| Type: | neighbourhood |
| Province: | Balıkesir |
| District: | Ayvalık |
| Küçükköy | |
| Population Total: | 11,05 |
| Population As Of: | 2022 |
| Coordinates: | 39.29°N 26.6869°W |
Küçükköy is a neighbourhood of the municipality and district of Ayvalık, Balıkesir Province, Turkey.[1] Its population is 11,405 (2022).[2] It includes the beach area Sarımsaklı.
Gateluzio, Prince of the Lesbos Island and a taxpayer to the Ottoman Empire, delayed his payments and Mehmed the Conqueror sent the Ottoman Navy to the island. Lesbos Island was conquered and annexed by the Ottoman Empire. For the first time in the history of Sarimsakli, a battalion of Janissary was engarrisoned in order to monitor the activities near the island and on the shore of Anatolia.
The Turkish people who arrived from Yugoslavia and Greece were settled mainly in this area.
The Beach of Sarımsaklı is one of the longest in Turkey. It hosts thousands of domestic and foreign tourists every year. The region boasts a Mediterranean climate.