Alberto Israel Errera (Greek: Αλβέρτος Ερρέρα, born 15 January 1913 in Larissa and died in August 1944 in Birkenau) was a Greek-Jewish officer and a member of the anti-Nazi resistance. He was a member of the Sonderkommando in Auschwitz-Birkenau from May to August 1944.
He took part in the preparation of the Sonderkommando uprising. He is the author of the Sonderkommando photographs and became famous for a spectacular escape attempt.
Before the war, Alberto Errera became an officer in the Greek army (Navy). He joined the partisans during the German occupation of Greece. He took the Christian name Alex (Alekos) Michaelides. On the night of 24 to 25 March 1944, he was arrested by the Germans in Larissa, among 225 Jews. He was jailed in Haidari camp. He was deported from Athens on 2 April and arrived at Auschwitz on 11 April. He was one of the 320 Greek men selected for labor (serial numbers from 182,440 to 182,759). His number was 182,552. He was assigned as Heizer (that is to say, a member of the Sonderkommando assigned to the crematorium furnace) in Birkenau Krematorium V. Alter Fajnzylberg talks about his athletic build and Leon Cohen describe his unusual strength. According to Filip Müller, Leon Cohen and the historian Hermann Langbein, he actively participated in the preparation of the Sonderkommando uprising alongside Yaacov Kaminski, Jankiel Handelsmann, Jukl Wrobel, Josef Warszawski, a man named Wladek, Giuseppe Baruch and Zalmen Gradowski, among others.
Through the testimony of Alter Fajnzylberg, we know that this is Errera who took the famous Sonderkommando photographs. with the help of Dawid Szmulewski, a member of the resistance, and three other members of the Sonderkommando, Szlama Dragon, his brother and Alter Fajnzylberg who kept watch. Errera buried the camera in the soil of the camp.