Daydream may refer to:
- Artists
- Daydream, a pre-debut boy group under PIA Entertainment
- Daydream, a disbanded girl group under Great Company
- DayDream, a disbanded girl group under Voice Level and TN Music
- Music
- Daydream, second mini album by DAY6
- "Daydream", debut and only digital single by DayDream
- Daydream, fourth mini album by D-CRUNCH
- Day Dream, debut mini album by E'LAST
- Daydream, first full-length album by Highlight
- "Daydream", seventh Japanese digital single by Raon
- "Day Dream", first digital single by Sungmin for STATION 2