| Rozwarzyn | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Kuyavian-Pomeranian |
| Subdivision Type2: | County |
| Subdivision Name2: | Nakło |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Nakło nad Notecią |
| Coordinates: | 53.1167°N 51°W |
| Pushpin Map: | Poland |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Registration Plate: | CNA |
Rozwarzyn is a village in the administrative district of Gmina Nakło nad Notecią, within Nakło County, Kuyavian-Pomeranian Voivodeship, in north-central Poland.[1] It lies approximately 4km (02miles) south-west of Nakło nad Notecią and 290NaN0 west of Bydgoszcz. It is located in the ethnographic region of Pałuki.
During the German occupation (World War II), some Poles from Rozwarzyn were among the victims of a massacre carried out by the German Selbstschutz in nearby Polichno in October 1939 as part of the Intelligenzaktion.[2]