| Leopold Otto | |
| Birth Date: | 2 November 1819 |
| Birth Place: | Warsaw, Congress Poland |
| Death Place: | Warsaw, Congress Poland |
| Nationality: | Polish |
| Occupation: | Lutheran pastor, national activist |
Pastor Leopold v. Otto also Leopold Marcin von Otto (2 November 1819 in Warsaw - 22 September 1882 in Warsaw) was a Lutheran pastor of the German community in Warsaw and Poland and a national activist, participant of the patriotic manifestation of 1861 in Warsaw. In 1866–1875 Otto worked in Cieszyn. He published a book about the "Deutsche Evangelische Gemeinde" (German Protestant Community Zwiastun Ewangeliczny) and also wrote sermons and religious writings.
In theology, he was a supporter of Lutheran orthodoxy and starkly rejected liberal theology and rationalistic interpretation of the Bible.
His second wife was Emilia Izabela Linde (1826–1857), daughter of Samuel Linde, Polish linguist.