Shalom (Hebrew: שָׁלוֹם šālōm; also spelled as sholom, sholem, sholoim, shulem) is a Hebrew word meaning peace, harmony, wholeness, completeness, prosperity, welfare and tranquility and can be used idiomatically to mean both hello and goodbye.

As it does in English, it can refer to either peace between two entities (especially between a person and God or between two countries), or to the well-being, welfare or safety of an individual or a group of individuals. The word shalom is also found in many other expressions and names. Its equivalent cognate in Arabic is salaam, sliem in Maltese, Shlama in Syriac-Assyrian and sälam in Ethiopian Semitic languages from the Proto-Semitic root Š-L-M.