Trout Brook is a tributary of Toby Creek in Luzerne County, Pennsylvania, in the United States. It is approximately 3.4 miles (5.5 km) long and flows through Dallas Township. Its watershed has an area of 4.20 square miles (10.9 km2). It is designated as a Coldwater Fishery and a Migratory Fishery. The stream is affected by sediment deposits and debris such as fallen trees. Wisconsinan Till, alluvium, wetlands, and bedrock consisting of shale and sandstone occur in the stream's vicinity.

Toby Creek is a tributary of the Susquehanna River in Luzerne County, Pennsylvania, in the United States. It is approximately 10.5 miles (16.9 km) long and flows through Dallas Township, Dallas, Kingston Township, Courtdale, Luzerne, Pringle, Kingston, Edwardsville, and Larksville. The watershed of the creek has an area of 36.5 square miles (95 km2). The entire drainage basin is designated as a Migratory Fishery and parts are designated as either a Coldwater Fishery, a Warmwater Fishery, or a Trout Stocking Fishery. The creek has two named tributaries: Huntsville Creek and Trout Brook. It is said to show "some degraded conditions", but does not experience severe pollution and is not considered to be impaired. The creek is piped underground in Pringle, but resurfaces in Edwardsville.