Karl Wilhelm Bücher (Buecher; first name sometimes Carl) (16 February 1847 Kirberg - 1930 Leipzig) was an important economist, one of the founders of non-market economics, and the founder of journalism as an academic discipline.

Karl Bücher was born in a small village in Hesse-Nassau as the son of a small, not very successful brushmaker and farmer; his grandfather Philipp was a cabinet-maker. Karl's mother, Christiane née Dorn, was the daughter of a baker. He attended a private preparatory school with a Pastor in nearby Dauborn and 1863–1866 the Catholic Gymnasium in Hadamar, where he was primus omnium. Bücher's old preparatory school teacher recommended that Bücher go to the university. The parents, after much discussion, finally consented. In 1866, the year of his graduation, the Duchy of Hesse-Nassau, and Bücher with her, became Prussian as a result of the War of 1866.

Bücher studied at the University of Bonn (also part of Prussia), concentrating on History and Classics, with the aim to become a Gymnasium teacher. Bücher's most important professor was the Ancient Historian Arnold Schäfer. For a while, he was a private tutor in Heppenheim to finance his studies, and then continued in Göttingen and Bonn, culminating in 1870 in a Dr.phil. (Ph.D.) in History and Epigraphy with a (published) dissertation entitled De gente Aetolica amphictyoniae participe. After a time as gymnasium teacher and journalist, especially in Frankfurt where he was famous for his liberal, anti-Bismarck views, Bücher decided to opt for academe and took his Habilitation at the University of Munich.

In 1882, elected by the faculty to an extraordinary professorship at the University of Erlangen, in the Franconian part of Bavaria, Bücher failed to receive Ministerial approval. However, he also received and accepted a call to a Chair at the University of Tartu (then Dorpat), the German-language university in the then Russian province of Livonia. The call enabled him to marry his fiancée Emilie Mittermaier, the daughter of the Grand Ducal Badenian Baurat Philipp Mittermaier, himself the son of a Heidelberg law professor. Emilie was a first cousin of the eminent psychiatrist Richard von Krafft-Ebing.

At Dorpat, Bücher held the Chair of Ethnography, Geography, and Statistics as successor of Wilhelm Stieda, concentrating almost exclusively on statistics. Here, he conceived of "newspaper science" (Zeitungswissenschaften) as a new field of scholarship. On 17 August (29 August new-style) 1883, Bücher's only son and child Friedrich, later a judge in Leipzig, was born. In the same year, Bücher received, and accepted out of family considerations, a call to the Chair of Economics and Statistics at the University of Basel as successor of Alphons Thun. He stayed there until 1890, during which time he developed a friendship with the historian and cultural philosopher Jakob Burckhardt. Bücher was elected President of the Statistical-Economical Association; his work was mainly Basel-focused and statistical. In Basel, he delivered the first lectures, also the first lectures in Europe at all, on "newspaper science". In 1889/90, he accepts, again mainly for family reasons, a call to the economics chair at the Technical Superior School in Karlsruhe, in the Grand Duchy of Baden, previously held by Eberhard Gothein.

The plan to call Bücher to the Chair of Economics at the University of Leipzig in the Kingdom of Saxony as successor of Lujo Brentano failed for political reasons; Bücher was still judged as too liberal. However, the University of Leipzig created a second chair in economics, with the addition of statistics. Bücher was suggested unanimously and without competition, and this time he received official approval.

His Leipzig tenure (1892–1916) was Bücher's most fruitful time. In 1893, he published Die Entstehung der Volkswirtschaft, his most important book, and the foundational study of non-market (exchange and gift) economics. The 17th and last edition of the original run appeared in 1926–1930; it was translated into French and English and went through six editions in America. In 1895, Bücher was elected corresponding member of the Bavarian Academy of Science, Historical Class. In 1896, Arbeit und Rhythmus (Labor and Rhythm), Bücher's perhaps most fascinating work, appeared; there are six editions until 1924. It was translated into Russian in 1899 and reprinted in 1923. In 1901, Bücher became co-editor, with Albert Schäffle, and after 1904 sole editor, of the eminent Zeitschrift für die gesamte Staatswissenschaft. He edited this key journal of German economics and administration until 1924. In 1901/1902 he served as Vice Chancellor of the Faculty of Philosophy, in 1902/1903 as Dean of the Faculty of Philosophy, and in 1903/04 as Rector of the University of Leipzig.

In 1916, based on his bad experience with press and propaganda during the War Bücher founded the Institute for Newspaper Science (Institut für Zeitungswissenschaften) at the University of Leipzig (after having established a departmental division already in 1915), the first such institution in Europe. Until 1926, Bücher headed the Institute and promoted the field, establishing it as a scholarly discipline in Germany with lasting results until today. In 1919, during the abortive German revolution, Bücher published a booklet about the socialization of factories as well as his highly successful autobiography, Lebenserinnerungen.

Bücher was for a time a member of the Leipzig City Council. Next to his earned doctorate, he received honorary ones of Law (Dr.jur.h.c.) from Gießen and of economics (Dr.rer.pol.) from Bonn, and probably a third one in engineering (Dr.-Ing.) as well. He was Royal Saxonian Geheimer Hofrat and a member of the Royal Saxon Academy.de:Karl Bücher ja:カール・ビュッヒャー