2014_JRC_Twitter_TR_NER-dataset.zip contains named entity annotations for 2,320 tweets in Turkish. The dataset is described in the following publication. Please cite it if you use the dataset in your research.
Küçük, D., Jacquet, G. and Steinberger, R. 2014. Named Entity Recognition on Turkish Tweets. In Proceedings of the Language Resources and Evaluation Conference. Reykjavik, Iceland.