| Official Name: | Kaslik |
| Native Name: | كسليك |
| Settlement Type: | Town |
| Pushpin Map: | Lebanon |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Lebanon |
| Subdivision Type: | Country |
| Subdivision Type1: | Governorate |
| Subdivision Name1: | Keserwan-Jbeil |
| Subdivision Type2: | District |
| Subdivision Name2: | Keserwan |
| Leader Title: | Mayor |
| Unit Pref: | Imperial |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Utc Offset: | +2 |
| Utc Offset Dst: | +3 |
| Coordinates: | 33.9831°N 35.6181°W |
Kaslik (Arabic: كسليك) is a Maronite town in the Keserwan District of the Keserwan-Jbeil Governorate in Lebanon. The town is home to a variety of 18th-century limestone houses, and a number of historic churches. However, the area was also subject to the rampant development during the Lebanese economic boom of the mid-twentieth century and has become heavily urbanized and now features a variety of factories and industrial plants within its borders.
Kaslik is today a hub for fishing and leisure ports as well as resorts, hotels, beaches and a shopping area. The town is also home to the USEK University and to international restaurants and cafes.