After weeks of competition,
Alisan beat Adam Wakefield, Hannah Huston and Laith Al-Saadi to win the coveted prize.
Rounding out the top four was Wakefield in second place, Huston in third and Al-Saadi rounding in fourth.
During her blind audition, Porter got four turns with her performance of Roy Orbison's "Blue Bayou."
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Alison Porter's win also makes Christina Aguilera the first female coach to have a winner.
Aguilera joins other winners like Adam Levine,Usher, William Pharrell, and Blake Shelton, who are the only other coaches to win since 2011.
"Tonight is a true victory for women" Aguilera said backstage.
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The finale episode featured performances by former Voice coach CeeLo Green, Ariana Grande, Sia, Little Big Town, Jennifer Nettles, Alison Krauss, Joe Walsh and Zayn Malik.
Watch Alisan Porter announced winner below.