| Official Name: | Bosiljevo |
| Settlement Type: | Municipality |
| Mapsize: | 150px |
| Pushpin Map: | Croatia |
| Pushpin Map Caption: | Location of Bosiljevo in Croatia |
| Coordinates: | 45.4°N 33°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Croatia |
| Subdivision Type1: | County |
| Area Footnotes: | [1] |
| Area Total Km2: | 111.5 |
| Area Urban Km2: | 0.3 |
| Population As Of: | 2021 |
| Population Total: | 1040 |
| Population Density Km2: | auto |
| Population Urban: | 44 |
| Population Density Urban Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
Bosiljevo is a village and municipality in Karlovac County, Croatia. It is located in the Gorski Kotar region, 25 km south-west from Karlovac, on the highways A1 and A6 leading to Zagreb, Rijeka and Split.
The total population of the municipality is 1,284, in the following forty-three settlements (villages and hamlets):
The Bosiljevo municipality is divided into four districts: Bosiljevo, Grabrk, Prikuplje and Vodena Draga.
It is situated between the rivers Kupa (the western part lying roughly along the Slovenia-Croatia border) and Dobra. To the south, the municipality shares borders with the Primorje-Gorski Kotar County and the town of Vrbovsko, to the south-east Ogulin, to the east Generalski Stol, and Netretić to the north.
Located in Gorski Kotar, the area's landscape is shaped by karst relief, and its most prominent features are the hills Družac and Privis, which stand at 469 and 461 meters respectively. The geology and climate of the region have traditionally been well-suited for pastoralism.
The area has been inhabited since the Neolithic period, as evidenced by pottery found in a site near the village of Hrsina. The earliest references to Bosiljevo date back to documents from the year 1334 when Ivan the Archdeacon of Gorica mentioned the parish church of Sancti Mauri in Bozilio in the constitution of the Zagreb bishopric. The Bosiljevo castle was most likely built in the early 15th century, and its first owner was Bartol IX Frankopan, a member of the Frankopan family.
Cultural and historical monuments, such as the Castle Frankopan (which has been in a desolate state of frame since the Nons were expelled in the late 70's), the ruins of the Castle Steljnik, old mansions, churches and monasteries yield the county a certain attraction. Two volunteer fire departments are presently active in Bosiljevo. The first one was founded in 1934 by Matija Bukovac. The other in Grabrk was founded in 1951. There is also a local cultural club called "Frankopan" and the hunting club "Družac".
Bosiljevo has one post office, one tavern (stand 2006), two shops and the restaurant "Bosiljevo" in Bosanci, on the old road (Rijeka-Zagreb). The most important companies are "Maier-Textil" in Bosiljevo and the saw-mill "Korenić" in Orišje. With the new roads, Bosiljevo and the surrounding area are opening up for the future.
The current Mayor of Bosiljevo County is Josip Korenić, also the owner of the Korenić saw mill in Orišje.
According to the 2011 census, Bosiljevo has a population of 1,284 inhabitants, of which 97% are ethnic Croats. The local dialect is mixed Kajkavian-Chakavian.
The patron saint of Bosiljevo is St. Vitus the Martyr, who is celebrated on 15 June.