| Building Name: | Kara Ahmed Pasha Mosque |
| Map Type: | Istanbul Fatih |
| Location: | Istanbul, Turkey |
| Coordinates: | 41.0211°N 28.9292°W |
| Religious Affiliation: | Sunni Islam |
| Architecture: | yes |
| Architect: | Mimar Sinan |
| Architecture Type: | mosque |
| Architecture Style: | Ottoman |
| Groundbreaking: | 1555 |
| Year Completed: | c. 1572 |
| Minaret Quantity: | 1 |
| Materials: | ashlar masonry |
The Kara Ahmed Pasha Mosque or Gazi Ahmed Pasha Mosque (Turkish: Kara Ahmet Paşa Camii) is a 16th-century Ottoman mosque near the city walls in Istanbul, Turkey. It was designed by the imperial architect Mimar Sinan and completed in around 1572.
The mosque was commissioned by Kara Ahmed Pasha who was married to Fatma Sultan, a daughter of Selim I. He became grand vizier under Suleiman the Magnificent in 1553 but was executed by strangulation two years later in 1555. The mosque was planned in around 1555 but only constructed between 1565 and 1571–72 after the pasha had been fully exonerated.
The courtyard is surrounded by the cells of a medrese and a dershane, or main classroom. Attractive apple green and yellow tiles grace the porch, while blue and white ones are found on the east wall of the prayer hall. These tiles date from the mid 16th century. The diameter dome is supported by six red granite columns. Of the three galleries, the wooden ceiling under the west one is elaborately painted in red, blue, gold and black. The mosque is last imperial building in Istanbul to be decorated with expressly designed cuerda seca tilework. Later buildings were decorated with tiles that were painted under a clear glaze.