Nicolai Wergeland (9 November 1780, in Hosanger (now Osterøy) – 25 March 1848, in Eidsvoll) was a Norwegian priest, writer and politician, and a member of the Norwegian Constituent Assembly at Eidsvoll that wrote the Constitution of Norway on 17 May 1814.
He was elected as one of two delegates from Christianssand to the Eidsvoll Assembly in 1814.
He represented the unionist side, and came very well prepared to Eidsvoll, bringing his own constitution draft.
Along with him from Christiansand came wholesaler Ole Clausen Mørch.