超导超大型加速器（Superconducting Super Collider，简称SSC）是一座夭折的环形粒子加速器。这一加速器于1987年在美国德克萨斯州开工，计划周长为87.1公里（54.1英里）（其面积相当于日本东京23区），隧道位于地下70公尺，使用一万个超导电磁铁，能将质子加速至20TeV，产生总能量为40TeV的质子束对撞，以期观测到理论预期的希格斯玻色子（这是由粒子物理学标准模型所预言，于2013年由另一加速器CERN实验证实）。计划主持人为美国德州大学与哈佛大学的物理学家罗伊·施韦特斯（Roy Schwitters）。

The Superconducting Super Collider (SSC) (also nicknamed the Desertron) was a particle accelerator complex under construction in the vicinity of Waxahachie, Texas. Its planned ring circumference was 87.1 kilometers (54.1 mi) with an energy of 20 TeV per proton and was set to be the world's largest and most energetic. It would have greatly surpassed the current record held by the Large Hadron Collider which has ring circumference 27 km (17 mi) and energy of 6.5 TeV per proton. The project's director was Roy Schwitters, a physicist at the University of Texas at Austin. Dr. Louis Ianniello served as its first Project Director for 15 months. The project was cancelled in 1993 due to budget problems.