汾酒, the classic light-aroma baijiu, is named after the river. It is made at 杏花村 in Fenyang, one of the villages that claim Du Mu's line 牧童遥指杏花村, 'the cowherd points far off to Apricot Blossom Village'.
usage
The city of 临汾, 'beside the Fen', is named after it too.
