| Keilhaus topp | |
| Map: | Innlandet#Norway |
| Map Alt: | Map of the location |
| Label Position: | bottom |
| Coordinates: | 61.6349°N 8.326°W[1] |
| Location: | Innlandet, Norway |
| Elevation M: | 2355 |
| Prominence M: | 20 |
| Isolation Km: | 0.38 |
| Elevation Ref: | [2] |
| Range: | Jotunheimen |
| Parent Peak: | Galdhøpiggen |
| First Ascent: | 8 August 1844 (Baltazar Mathias Keilhau, C. Hansteen, Andresen) |
Keilhaus topp is a mountain in Lom Municipality in Innlandet county, Norway. It is one of Norway's highest mountains, but is not always included in rankings due to its topographic prominence of only . The 2355m (7,726feet) tall mountain is located in the Jotunheimen mountains within Jotunheimen National Park. The mountain sits about southwest of the village of Fossbergom and about northeast of the village of Øvre Årdal. The mountain is surrounded by several other notable mountains including Galdhøpiggen (Norway's tallest mountain) to the west, Veslpiggen to the northwest, Galdhøi and Juvvasshøi to the north, Store Styggehøe to the southeast, Midtre Tverråtinden to the south, and Svellnosbreahesten and Store Tverråtinden to the southwest.
The professor Baltazar Mathias Keilhau, together with two students, tried to reach the top of Galdhøpiggen in 1844 - but he had to stop here because of bad weather.