Marian Borden Mancini is a Canadian politician, who was elected to the Nova Scotia House of Assembly in a by-election on July 14, 2015. She represented the district of Dartmouth South as a member of the Nova Scotia New Democratic Party.

Prior to her election to the legislature, she worked as a legal aid lawyer. She is married to Peter Mancini, a former federal Member of Parliament.

On November 10, 2016, Mancini announced that she would not re-offer in the next election.

On April 23, 2017, Mancini resigned from the Nova Scotia House of Assembly.

Election record

Nova Scotia provincial by-election, July 14, 2015 On the death of Allan Rowe
PartyCandidateVotes%±%
New DemocraticMarian Mancini2,27435.25+1.93
LiberalTim Rissesco2,19333.99-12.24
Progressive ConservativeGord Gamble1,49423.16+4.75
IndependentCharlene M. Gagnon4907.60
Total valid votes6,54199.66
Total rejected ballots220.34
Turnout6,47338.21
Electors on the lists17,940
New Democratic gain from LiberalSwing+7.09