Juncus dichotomus (commonly known as forked rush) is a monocot in the Juncaceae family of rushes. The plant is native to the Americas in temperate zones but has been introduced to other parts of the world. Juncus dichotomus often is found in very moist areas and where rainfall is a common occurrence. It is often most recognizable in the spring and summer months due to its conspicuous flowers and infructescence.

The species can be difficult to identify and is often confused with other Juncus species due to morphological similarity. Often Juncus dichotomus is overlooked because it is inconspicuous in the field. It is sometimes considered a weed.

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