The Yiddish-language surname מענדעלסאן is transliterated to English as Mendelssohn, Mendelsson, Mandelson (surname), or Mendelson. It is a common Polish/German Jewish surname. The variant spellings are used interchangeably, often even within a single family.
The name means son of Mendel ("Mendel's son"), or son of Menachem, as Mendel is a Yiddish diminutive of the Hebrew given name Menahem. Menachem itself means "consoling" or "one who consoles."
See also: