Konrad Martin (18 May 1812, at Geismar, Province of Saxony – 16 July 1879, at Mont St Guibert, near Brussels, Belgium) was a Catholic Bishop of Paderborn.

But he was compelled to leave Würzburg, and undergo the same examination in Münster, Westphalia, because the Prussian ministry forbade studying at South German universities and did not recognize their degrees.

Feeling an inclination towards academic teaching which the diocese of Paderborn was unable to satisfy, he entered the archdiocese of Cologne, and as a student of the theological seminary was ordained priest in 1836.

Immediately after this he was appointed rector of the "pro-gymnasium" at Wipperfürth, and published, in Mainz, 1839, under the pseudonym Dr. Fridericus Lange, a sharp and forceful pamphlet against Hermesianism, written in classical Latin.

In 1874, because of his opposition to the Falk Laws, he was sentenced to imprisonment; in the following year he was relieved of his office, by order of the Minister of Worship, and incarcerated in the fortress of Wesel.

From there, as a centre, he governed his diocese through secret emissaries, laboured as pastor and teacher of religion, and wrote several works such as "Drei Jahre aus meinen Leben: 1874-1877" (Paderborn, 1877).

Upon his death, Mother Pauline had his body secretly moved across the border and accompanied it to Paderborn, where the bishop was buried with full solemn honors.

[4][2] Along with another Catholic theologian, Sebastian Brunner, Martin authored an anti-Jewish tract entitled Blicke in's talmudische Judenthum (1848), which argued that Jews were a source of danger to Christian life.