The DR1 (Russian: Дизельпоезд Рижский 1) (English: Diesel-train Riga 1) diesel trainset was manufactured by Rīgas Vagonbūves Rūpnīca from 1963 to 1998 with exception orders built in 2005 and 2011 for suburban commuter usage within the Soviet Union.

DR2 — A modification of second-batch DR1 units that were equipped with engines installed under the carriage instead of behind the cab, as was usual.

DR1P — The prototype unit DR1P-030 was completed in 1969, and had a starter/generator instead of a separate diesel generator installed.

DR1A (second batch) — The prototype, numbered DR1A-168, was finalized in 1977, and its front fascia got a complete facelift.

However, its mass production started only after the dissolution of the Soviet Union, with minor changes to the units' headlights.

DR6 — This trainset was based on second-batch DR1A units, and was constructed in 1990 for Cuban Railways.

DR1AM — These are refurbished DR1A units in use by Georgian, Latvian, Lithuanian, and Ukrainian railway operators.

Both DR1A batches were refurbished; however, the driving carriages' exterior was always refactored into the style carried by second-batch DR1A units.

500 Series DR1B — Newer trainsets built for Belarus Railways with an improved design.

Both batches of DR1A were refurbished; however, the exterior of each unit's driving carriage was refactored in second-batch DR1A style.

The DR1B trainsets operated by GoRail in Estonia were equipped with space for bicycles, making the setup similar to one that originated with trains in western Europe.

This Russian rail transport related article is a stub.