Indiana has a very small number of lighthouses, tucked waaayyy down in the bottom of Lake Michigan. My primary source for this list is Great Lakes Lighthouses: American & Canadian [GLL] by Wes Oleszewski, but I have also made use of The Northern Lights: Lighthouses of The Upper Great Lakes [NL] by Charles K. Hyde.
- Old Michigan City Light [GLL]
- Michigan City East Pier Light [GLL]
- Michigan City Breakwater Light [NL]
- Gary Breakwater Light [GLL]
- Buffington Breakwater Light [GLL]
- Indiana Harbor East Breakwater Light [GLL]