Ilse (born Ilse María Olivo Schweinfurth on November 27, 1965 in Caracas, Venezuela) is a Mexican singer and telenovela actress.

The Induction Linac Systems Experiments ( ILSE) was a proposal by the LBNL HIF group to build a 10-MeV multiple-beam accelerator that was to have modeled an ICF ion driver on a small scale but with several driver-scale characteristics, such as beam size and current.