Shumashti – also known as Shumasht – is a language spoken in parts of western Pakistan and eastern Afghanistan.

It belongs to the Indo-European language family, and is on the Dardic group of the Indo-Iranian branch.

It was spoken by an estimated 1,000 people in 1994 on the western side Kunar River 60 miles up from Gawar-Bati. Literacy rates are low: below 1% (less than 10) for people who have it as a first language, and between 15% to 25% (between 150 and 250) for people who have it as a second language.

It has a lexical similarity of 63% with Nangalami and 47% with Gawar-Bati. It has been heavily influenced by Pashayi.