Miller is a train station in Gary, Indiana, serving the South Shore Line commuter rail system. It serves the community of Miller Beach and is one of three South Shore Line stations within the municipal boundaries of Gary.

The South Shore Line is an electrically powered interurban commuter rail line operated by the Northern Indiana Commuter Transportation District (NICTD) between Millennium Station in downtown Chicago and the South Bend International Airport in South Bend, Indiana, United States. The name refers to both the physical line and the service operated over that route. The line was built in 1901–1908 by predecessors of the Chicago South Shore and South Bend Railroad, which continues to operate freight service. Passenger operation was assumed by the NICTD in 1989, who also purchased the track in 1990. The South Shore Line is one of the last surviving interurban trains in the United States. In 2023, the system had a ridership of 1,406,900, or about 5,000 per weekday as of the fourth quarter of 2023.