Küçükfındık is a neighborhood (mahalle) in the municipality and district of İvrindi, Balıkesir Province, Turkey. It is located in the Marmara region of the country.
Prior to the 2013 administrative reorganization (Law No. 6360), Küçükfındık was classified as a village (köy). Following the law, which redefined the administrative boundaries of metropolitan and district municipalities, the village was reclassified as a neighborhood of the İvrindi district center.
As of the 2023 Address-Based Population Registration System (ADNKS) data, the population of the neighborhood is 228. The area relies primarily on agriculture and animal husbandry, with olive cultivation being a significant economic activity in the wider İvrindi region.
