Gramma, whose correct name is be Grandma, is the grandmother of Greg, Rodrick, and Manny and mother to Susan. In Dog Days, she is given Sweetie. She tends to favor Manny, over Rodrick and Greg, but she denies this. She is Susan Heffley's mother and is not married to Grandpa, Frank's father.

She likes to play bingo but is not as serious as some of the ladies. She also reads tabloids, which leads to problems, as Susan claims that tabloids are full of lies. However, Gramma seems to believe the tabloids, such as when she would not answer her phone because she said it erases the memory of the elderly.

AppearancesEdit

• Diary of a Wimpy Kid ^{(first appearance)}
• Diary of a Wimpy Kid (film) ^{(mentioned only as "Grandma")}
• Diary of a Wimpy Kid: Rodrick Rules
• Diary of a Wimpy Kid: The Last Straw
• Diary of a Wimpy Kid: Dog Days
• Diary of a Wimpy Kid: The Ugly Truth
• Diary of a Wimpy Kid: Cabin Fever
• Diary of a Wimpy Kid: Do-It-Yourself Book