The German world No 14 not only came from a set down, she saved a match point on her way to beating Canadian star Eugenie Bouchard 3-6 6-3 7-6 (6).
But Gorges fought back to take the match 2-6 7-5 6-1.
Goerges showed her fighting qualities with a strong hold at 4-5 down, then broke back as errors began to creep into the Canadian's game.
Goerges's victory marked her third championship in 12 months and makes her only the third woman to defend her title in Auckland.
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Yet while the pain of falling short will linger for at least a few days, Andreescu was still able to reflect positively on her incredible week.
"I've played my best tennis this week", Andreescu said after the match, per BBC.
"At 5-4 in the second set it was really hard for me to stay in the moment when I was only one game away from winning the tournament", said Andreescu.
Two games later and the title was Goerges' once more, yet again giving her the ideal lead-in to the looming Australian Open. "I'm really thankful for this because he actually woke me up a little bit".
But it was Goerges' night as she went on to capture a seventh WTA crown and continue her reign in Queen City. "I don't even know what to say".
Goerges sensed the opportunity, and converted her second set point to level the match.
Andreescu, who had been so fearless throughout the tournament, admitted she started to tighten up at that point.