Heinrich Abeken (August 19, 1809 – August 8, 1872) was a German theologian and Prussian Privy Legation Councillor in the Ministry of Foreign Affairs in Berlin.
Abeken was born and raised in the city of Osnabrück as a son of a merchant, he was incited to a higher education by the example of his uncle Bernhard Rudolf Abeken. After finishing the college in Osnabrück, he moved in 1827 to visit the University of Berlin to study theology. He soon combined philosophical and philological studies and was interested in art and modern literature.
In 1831, Abeken acquired a licenciate of theology. At the end of the year he visited Rome, and was welcomed in the house of Christian Karl Josias, Freiherr von Bunsen. Abeken participated in Bunsen's works, namely an evangelic prayer and hymn-book. In 1834 became chaplain to the Prussian embassy in Rome. He married his first wife, who died soon thereafter. Bunsen left Rome in 1838 and Abeken followed soon thereafter to Germany. In 1841, he was sent to England to help founding a German-English evangelic episcopacy in Jerusalem. In the same year, he was sent by Frederick William IV of Prussia to Egypt and Ethiopia, where he joined an expedition led by professor Karl Richard Lepsius. In 1845 and 1846 he returned via Jerusalem and Rome to Germany. He became Legation Councillor in Berlin, later Council Referee at the Ministry of Foreign Affairs.
In 1848 he received an appointment in the Prussian ministry for foreign affairs, and in 1853 was promoted to be privy councillor of legation (Geheimer Legationsrath). Abeken remained in charge for more than twenty years of Prussian politics, assisting Otto Theodor Freiherr von Manteuffel and Chancellor Otto von Bismarck. The latter was so much pleased with Abeken's work that officials started to call Abeken "the quill [i.e., the scribe] of Bismarck." Abeken married in 1866 Hedwig von Olfers, daughter of the general director of the royal museums, Privy Council von Olfers.