
This article contains a list of tributaries of the Allegheny River, a stream in the U.S. states of New York and Pennsylvania.
Bowman Creek is a 26-mile (42 km) long tributary of the Susquehanna River in Luzerne County and Wyoming County, in Pennsylvania, in the United States. It has 26 named tributaries, of which 21 are direct tributaries and 5 are sub-tributaries. These include nineteen runs, six creeks, and one hollow. By length, the tributaries range from the 0.9-mile (1.4 km) long Benson Hollow and Wolf Run to the 7.2-and-7.7-mile long Leonard Creek and Beaver Run. By watershed area, they range from 0.74 and 1.02 square miles for Wolf Run and Sugar Run to 11.4 and 17.4 square miles for Roaring Run and Leonard Creek.
Catawissa Creek is a 41.8-mile (67.3 km) long creek flowing into the Susquehanna River with 26 named tributaries, of which 19 are direct tributaries. The creek flows through Luzerne, Schuylkill, and Columbia counties in Pennsylvania. The two shortest tributaries are approximately 1 mile (1.6 km) long, while the longest is about 10.8 miles (17.4 km) in length. The tributaries include seventeen runs, six creeks, and three hollows. By length, the five largest tributaries of Catawissa Creek are Little Catawissa Creek, Tomhicken Creek, Scotch Run, Beaver Run, and Messers Run. By watershed area, the five largest tributaries are Tomhicken Creek, Little Catawissa Creek, Beaver Run, Scotch Run, and Messers Run.

The principal tributaries of the Colorado River of North America are the Gila River, the San Juan River, the Green River, and the Gunnison River.

Tributaries and sub-tributaries are hierarchically listed in order from the mouth of the Columbia River upstream. Major dams and reservoir lakes are also noted.

The watershed of the Delaware River drains an area of 14,119 square miles (36,570 km2) and encompasses 42 counties and 838 municipalities in five U.S. states—New York, New Jersey, Pennsylvania, Maryland, and Delaware. This total area constitutes approximately 0.4% of the land mass in the United States. The Delaware River rises in New York's Catskill Mountains flowing southward for 419 miles (674 km) into Delaware Bay where its waters enter the Atlantic Ocean near Cape May in New Jersey and Cape Henlopen in Delaware. There are 216 tributary streams and creeks—an estimated 14,057 miles of streams and creeks—in the watershed.

This is a List of tributaries of the Gila River, the final river drainage of the Colorado River, and covers the entire width of southern Arizona. The headwaters of the Gila River begin in the Gila National Forest of New Mexico. The northern branch tributary to the Gila River in the Gila National Forest, is the San Francisco River.
The Lackawanna River is a 40-mile (64 km) long river flowing into the Susquehanna River with 65 named tributaries, of which 33 are direct tributaries. The river flows through Susquehanna, Lackawanna, and Luzerne Counties in Pennsylvania. The shortest tributary is 0.4 miles (0.64 km) long, while the longest is 21 miles (34 km) long. The tributaries include 40 creeks, 14 brooks, 9 runs, and 2 rivers. By length, the five largest tributaries are Roaring Brook, Spring Brook, the East Branch Lackawanna River, Stafford Meadow Brook, and the West Branch Lackawanna River. By watershed area, the five largest tributaries are Spring Brook, Roaring Brook, the East Branch Lackawanna River, Leggetts Creek, and the West Branch Lackawanna River.
There are 42 named tributaries of Larrys Creek, which is a 22.9 mile (36.9 km) long stream in Lycoming County in the U.S. state of Pennsylvania. Larrys Creek is a tributary of the West Branch Susquehanna River and part of the Chesapeake Bay drainage basin; its watershed drains 89.1 square miles (231 km2) in six townships and a borough. Despite being clear-cut in the 19th century, as of 2008 the Larrys Creek watershed is 83.1% forest and 15.7% agricultural.
Mahanoy Creek is a 51-mile (82 km) long tributary of the Susquehanna River in Schuylkill County and Northumberland County, in Pennsylvania, in the United States. It has eleven officially named tributaries, of which six are direct tributaries and five are sub-tributaries. These include seven creeks and four runs. The largest tributary by both length and watershed area is Schwaben Creek, which is 10.7 miles (17.2 km) long and drains an area of 30.2 square miles (78 km2). The second-largest by these measures is Zerbe Run, which is 8.3 miles (13.4 km) long and drains an area of 13.1 square miles (34 km2).

Tributaries of the Missouri River, a major river in the central United States, are listed in upstream order. These lists are arranged into river sections between cities or mouths of major tributaries for ease of navigation. Two large tributaries have their own separate lists because they would be too lengthy to include in part of another section.

There are 17 named tributaries of the main stem of Fishing Creek, a 30-mile-long (50 km) stream in Columbia County, Pennsylvania, in the United States and a tributary of the Susquehanna River. The creek also has numerous sub-tributaries. The creek's watershed has an area of 385 square miles (1,000 km2). The watersheds of Little Fishing Creek and Huntington Creek, Fishing Creek's two largest tributaries, make up nearly 45 percent of the Fishing Creek watershed.
Shamokin Creek is a 32.4-mile long creek flowing through Northumberland County, Pennsylvania, in the United States, into the Susquehanna River. It has 12 named tributaries, including 11 direct tributaries and one sub-tributary. The tributaries include seven runs and five creeks. The longest are Little Shamokin Creek, Carbon Run, North Branch Shamokin Creek, Coal Run, and Millers Run.