Atlas H – Convair
- Family: Atlas
- Length: 27 m
- Diameter: 3.05 m
- Launch Mass: 150 T
- Low Earth Orbit Capacity: 3630 kg
The Atlas H was manufactured by Convair with the first launch on 1983-02-09. Atlas H has 5 successful launches and 0 failed launches with a total of 5 launches. The Atlas H was an American expendable launch system derived from the SM-65 Atlas missile. It was a member of the Atlas family of rockets, and was used to launch five clusters of NOSS satellites for the US National Reconnaissance Office. Two flights also carried LiPS satellites, as secondary payloads for the United States Naval Research Laboratory.