Holocaust survivors are people who survived the Holocaust, defined as the persecution and attempted annihilation of the Jews by Nazi Germany and its allies before and during World War II in Europe and North Africa. There is no universally accepted definition of the term, and it has been applied variously to Jews who survived the war in German-occupied Europe or other Axis territories, as well as to those who fled to Allied and neutral countries before or during the war. In some cases, non-Jews who also experienced collective persecution under the Nazi regime are considered Holocaust survivors as well. The definition has evolved over time.

Survivors of the Holocaust include those persecuted civilians who were still alive in the concentration camps when they were liberated at the end of the war, or those who had either survived as partisans or been hidden with the assistance of non-Jews, or had escaped to territories beyond the control of the Nazis before the Final Solution was implemented.

At the end of the war, the immediate issues which faced Holocaust survivors were physical and emotional recovery from the starvation, abuse and suffering which they had experienced; the need to search for their relatives and reunite with them if any of them were still alive; rebuild their lives by returning to their former homes, or more often, by immigrating to new and safer locations because their homes and communities had been destroyed or because they were endangered by renewed acts of antisemitic violence.

After the initial and immediate needs of Holocaust survivors were addressed, additional issues came to the forefront. Examples of such included social welfare and psychological care, reparations and restitution for the persecution, slave labor and property losses which they had suffered, the restoration of looted books, works of art and other stolen property to their rightful owners, the collection of witness and survivor testimonies, the memorialization of murdered family members and destroyed communities, and care for disabled and aging survivors.