The 30-year-old Italian beat Hanfmann 6-4, 7-5 for a fifth ATP World Tour title and first of the year in a match lasting one hour and 40 minutes on the Roy Emerson Arena.
From the word go, Fognini played steady, attacking tennis, firing 21 winners with just 11 unforced errors.
Fognini started off in perfect fashion breaking the 25-year-old German’s serve immediately then again to lead 4-0.
Hanfmann did manage a service break of his own in the eighth game to trail 3-5 but the Italian always looked in charge and went on to win the set 6-4 after 40 minutes converting his first set point.
The next set was a lot tighter with Hanfmann fighting hard, saving a break point in his opening service game.
The match progressed on serve until the 11th game when Fognini broke his opponents serve with a backhand winner to lead 6-5.
He then closed out the victory on his first championship point winning the set and match 7-5.