| Johann Adam Ackermann | |
| Birth Date: | 3 November 1780 |
| Birth Place: | Mainz, Electorate of Mainz |
| Death Place: | Frankfurt, Hesse-Nassau |
| Nationality: | German |
| Field: | Painting |
| Movement: | Landscape |
Johann Adam Ackermann (November 3, 1780 - March 27, 1853) was a German landscape painter of the early 19th century.
He was born in Mainz and moved to Frankfurt am Main in 1804. His best-known works are his winter landscapes and watercolours. He died in Frankfurt.
Johann Ackermann was the brother of Georg Friedrich Ackermann (1787, Mainz – 1843, Frankfurt am Main), who also painted landscapes but with less success.