| Kolonica | |
| Settlement Type: | Municipality |
| Subdivision Type: | Country |
| Subdivision Type2: | Region |
| Subdivision Name2: | Prešov |
| Subdivision Type3: | District |
| Subdivision Name3: | Snina |
| Pushpin Map: | Slovakia Prešov Region#Slovakia |
| Pushpin Relief: | 1 |
| Pushpin Map Caption: | Location of Kolonica in the Prešov Region##Location of Kolonica in Slovakia |
| Coordinates: | 48.9667°N 38°W |
| Established Title: | First mentioned |
| Established Date: | 1567 |
| Area Total Km2: | 27.18[1] |
| Area Total Sq Mi: | 10.49 |
| Elevation M: | 358[2] |
| Elevation Ft: | 1,175 |
| Population Total: | 527[3] |
| Population Density Km2: | 19.59[4] |
| Population Density Sq Mi: | 7.56 |
| Timezone1: | CET |
| Utc Offset1: | +1 |
| Timezone1 Dst: | CEST |
| Utc Offset1 Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 067 61 |
| Area Code: | +421 57 |
| Blank Name: | Car plate |
| Blank Info: | SV |
Kolonica (Hungarian: Kiskolon, Колоніця) is a village and municipality in the Snina District of the Prešov Region of north-eastern Slovakia. It has a population of about 600 people.
In historical records the village was first mentioned in 1567. Before the establishment of independent Czechoslovakia in 1918, Kolonica was part of Zemplén County within the Kingdom of Hungary. In 1939, it was for a short time part of the Slovak Republic. From 1939 to 1944, as a result of the Slovak–Hungarian War of 1939, it was again part of Hungary. In 1944, the Red Army entered Kolonica and it was once again part of Czechoslovakia.
Just east of the village is a Soviet-manufactured one-metre telescope, the biggest telescope in Slovakia, used for observing variable stars.[5]
Kolonica is around 80 km east of Košice, lies at a height of 360 metres and covers an area of 27.181 km².