The Mistletoe Farm series consists of two books by children's author Enid Blyton:
- Six Cousins at Mistletoe Farm (1948)
- Six Cousins Again (1950)
The Longfield family, who are 15-year-old twins Jane and Jack, 11-year-old Susan and Crackers the spaniel, live at Mistletoe Farm with their parents Mr. and Mrs. Longfield.
When they receive a phone call from their uncle who informs the family that his uninsured townhouse has burnt down, they are asked to look after his three siblings, who are 16-year-old Cyril, 14-year-old Melisande and 10 or 11-year old Roderick. The Longfield children are initially alarmed of the prospect of their three spoilt cousins from the city living with them, and at first they find it difficult to get along with other. But after a number of challenges and hardships affect Mistletoe Farm, the city kids learn to adapt to life in the country and get along with their cousins.