The third season of Packed to the Rafters, an Australian drama television series, began airing on 29 June 2010 on the Seven Network. The season concluded on 16 November 2010 after 22 episodes. The third season aired Tuesdays at 8:30 pm in Australia and averaged 1,894,000 viewers. The season was released on DVD as a six disc set under the title of Packed to the Rafters: The Complete Season 3 on 20 April 2011.

The third season follows the Rafters as they adjust to life with a new baby and face their toughest test yet, the sudden and tragic loss of a loved one. For Julie and Dave, there's the financial stress of being a one-income family, the sense of being pulled in a hundred directions by the needs of their adult children, and the strain placed on their marriage as the stress and exhaustion of caring for a baby takes hold. Rachel, the eldest Rafter child, struggles to find balance between her high-flying new job and her relationship with Jake; Ben, recently and blissfully married to Melissa, is trying for kids until a heartbreaking accident shatters his world; and Nathan is agonisingly estranged and ultimately divorced from his wife Sammy. Add to the mix, new family members Coby and Dave's father, Tom, and life for the Rafters has never been more packed.