| Official Name: | Dailučiai |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
| Coordinates: | 54.6222°N 22.8861°W |
| Pushpin Map: | Lithuania |
| Subdivision Type: | Country |
| Subdivision Type1: | Ethnographic region |
| Subdivision Name1: | Suvalkija |
| Subdivision Type2: | County |
| Subdivision Name2: | Marijampolė County |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Vilkaviškis district municipality |
| Subdivision Type4: | Elderate |
| Subdivision Name4: | Virbalis elderate |
| Population Total: | 147 |
| Population As Of: | 2011 |
Dailučiai is a small village in Marijampolė County, Lithuania. It is located east from Virbalis near the Marijampolė−Kybartai road. According to the census of 2011, it had 147 residents.
Dailučiai was established after World War I when Versnupiai manor was abolished.
Algimantas Sakalauskas, Lithuanian folk artist and wood sculptor, was born in Dailučiai.