Rhombithian is an album by Sincere Engineer, released in 2017. The album is a punk LP.

• A1 Corn Dog Sonnet No. 7
• A2 Ceramic Tile
• A3 Overbite
• A4 Screw Up
• A5 Shattering
• A6 Here's Your Two Dollars
• B1 1K Rats
• B2 Candle Wax
• B3 Let You Down
• B4 Keep You Company
• B5 Ghosts In The Graveyard