Trout Brook is a tributary of Toby Creek in Luzerne County, Pennsylvania, in the United States.

Wisconsinan Till, alluvium, wetlands, and bedrock consisting of shale and sandstone occur in the stream's vicinity.

Trout Brook begins in a pond near Lower Demunds Road in Dallas Township.

Several tenths of a mile further downstream, it reaches its confluence with Toby Creek just north of Shavertown.

[1] Trout Brook joins Toby Creek 7.60 miles (12.23 km) upstream of its mouth.

[3] The watershed of Trout Brook is relatively undeveloped compared to the land near the main stem of Toby Creek.

[7] Runoff from a development in the vicinity of Trout Brook occasionally overflows its detention pond and flows into the stream.