Yes a common symptom of having or getting diabetes is increased hunger or an increased appetite that makes you want to eat more than you normally would.
There's a medical term for this condition and it's known as Polyphagia which is excessive hunger and/or increased appetite.
And Polyphagia is one of the 3 main signs of a person having diabetes.
Other symptoms of Diabetes are Polydipsia which is increased thirst and Polyuria which is excessive and frequent urination.