Sesam, SESAM or SeSaM may refer to:SESAM (database), a relational database developed by Fujitsu Siemens SESAM (FEM), a structural analysis software Sesam, a Scandinavian internet search engine SeSaM-Biotech GmbH, a biotechnology company focusing on protein engineering Semiconductor saturable-absorber mirror, a component used in some lasers Sequence saturation mutagenesis (SeSaM), a molecular biology method for diversity creation by random mutagenesis