Eduard Ahrens (3 April 1803, Tallinn (Reval) – 19 February 1863, Kuusalu, Estonia) was a Baltic German Estonian language linguist and clergyman.
Ahrens studied at Tallinn Cathedral School from 1811 to 1819, and, from 1820 to 1823, at the Faculty of Theology of the University of Tartu.
The reason for his writing reforms was the desire to make reading the liturgical texts of the church easier.
Ahrens was a devout religious figure in social life, and the secular literature published in Estonia remained alien to him.
The main purpose of Ahrens's linguistic activity was to study and improve Estonian liturgical language.