Osem may refer to:
*
Osem (mathematics)
In mathematical optimization, the ordered subset expectation maximization (OSEM) method is an iterative method that is used in computed tomography.
In applications in medical imaging, the OSEM method is used for positron emission tomography (PET ...
– algorithm for image reconstruction in nuclear medical imaging
*
Osem (company)
Osem Investments Ltd. () is one of the largest food manufacturers and distributors in Israel. The group is owned (100%) by Nestlé S.A. of Switzerland.
Before it was acquired by Nestlé, the company was publicly traded and listed on the Tel Aviv ...
– Israeli food corporation
*
Orquesta Sinfonica del Estado de Mexico, an official State symphony orchestra in Mexico.
{{disambig