許慎（約30年—約124年），字叔重，東漢汝南召陵（而今嘅河南省郾城縣）人，係漢代著名經學家、文字學家，係中國文字學嘅開拓者。他喺公元100年（東漢和帝永元十一年）開始寫《說文解字》，係中國第一本字典。
Xu Shen (c. 30 - c. 124), a native of Zhaoling in Runan of the Eastern Han Dynasty (now Echeng County, Henan Province), was a famous scholar and philologist in the Han Dynasty and a pioneer of Chinese philology. He began to write Shuowen Jie Zi in 100 A.D. (the 11th year of the Eastern Han Dynasty and Emperor Yongyuan), which was the first dictionary in China.