| Official Name: | Matuizos |
| Settlement Type: | Village |
| Pushpin Label Position: | Location in Lithuania |
| Subdivision Name: |  Lithuania |
| Subdivision Type1: | County |
| Subdivision Name1: | Alytus County |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Varėna |
| Population As Of: | 2021 |
| Population Total: | 1073[1] |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
Matuizos is a village in Varėna district municipality, in Alytus County, in southeastern Lithuania. According to the 2011 census, the village has a population of 1201 people.
The village has a library, events hall, a medical station, Matuizos high school and museum of the school.
The village was established in the beginning of the 19th century. Until the beginning of the Second World War it was named Baculioniai.
The name Matuizos comes from a personal name Matúiza, Matúizas which (probably through Belarusian: Матуйзo) is from a German personal name Mathäus. The earlier name Baculionys is from a personal name Baciùlis (also Bacỹs, Bãcius) which may be originated from Belarusian: бацька, баця 'a daddy'.[2]