Moritz Callmann Wahl (March 28, 1829 – October 15, 1887) was a German writer.

He was born in Sondershausen, Germany on March 28, 1829. He studied Oriental languages at Leipzig under Julius Fürst and Heinrich Leberecht Fleischer. Later he taught for a time at an English school, and later was a correspondent in a business house at Lyon, France. He settled at Erfurt, Germany, where he founded a business academy. Aside from his teaching activity he pursued scientific studies. He died on October 15, 1887.

• Beiträge zur Vergleichenden Parömiologie
• Das Sprichwort in der Hebräisch-Aramäischen Literatur
• The Book of Merry Riddles
• Das Sprichwort der Neueren Sprachen
• Die Englische Parömiologie vor Shakespeare
• Das Parömiologische Sprachgut bei Shakespeare

•  This article incorporates text from a publication now in the public domain: Singer, Isidore; et al., eds. (1901–1906). "Wahl, Moritz Callmann". The Jewish Encyclopedia. New York: Funk & Wagnalls.