En ettas dagbok
| Author | Viveca Sundvall |
|---|---|
| Illustrator | Eva Eriksson |
| Cover artist | Eva Eriksson |
| Language | Swedish |
| Series | Mimmi |
| Genre | children |
| Published | 1982 |
| Publisher | Rabén & Sjögren |
| Publication place | Sweden |
| Preceded by | Monstret i skåpet (1979) |
| Followed by | Roberta Karlsson och kungen (1983) |
En ettas dagbok is a 1982 Viveca Sundvall children's book, and the first book in the Mimmi series. Written as a diary, it is set between 16 August-30 April the year Mimmi attends the first grade at school. Together with Roberta Karlsson och kungen and Vi smyger på Enok they were later all released in a collection called "Mimmis bok".
In 1985, a TV series based on the book was made.