She began her career at the age of 7 after being discovered via a school talent contest, later taking roles as a seductive starlet and over the years increasingly channeling her art to support women's rights and social justice.
"She was a real great artist and she gave an honorable image to Egyptian artists," actor Hussein Fahmy said at the funeral, where mourners prayed outside the mosque entrance where Hamama's casket was carried aloft.
"She was classy, a good speaker and well-respected. We will miss her greatly," he added.
Her 1975 film "I Want a Solution" gave a scathing critique of divorce and marriage laws in Egypt, while 1965's "The Sin" focused on the oppression of struggling peasants.
The Egyptian Organization of Critics and Writers gave her their Star of the Century award in 2000.
She is survived by her husband, Mohamed Abdel Wahab, and a son and daughter from previous marriages.