Alois Negrelli, Tyrolean engineer and railroad pioneer active in the Austrian Empire (d. 1858)
Nikolaus Alois Maria Vinzenz Negrelli, Ritter von Moldelbe (born Luigi Negrelli; 23 January 1799 – 1 October 1858) was a Tyrolean civil engineer and railroad pioneer mostly active in parts of the Austrian Empire, Switzerland, Germany and Italy.