High Quality Content by WIKIPEDIA articles! The name "Siddiqui" derives from the word Siddiq, which means "truthful" in Arabic. "Al-Siddiq" was the title accorded to Abu Bakr (Arabic: ), the first Khalifa (Caliph) and close friend of Prophet Mohammad. He was the greatest of the Companions or Sahabba and belonged to the Banu Taim clan of the Quraish. The surname "Siddiqui/Siddique" signifies ancestry (purported or otherwise) from Abu Bakr Al-Siddiq (RA). In South Asia, the name Siddiqui implies membership of the Shaikh community, which is one of the four communities that make up the Ashraf category. Communities that use the surname include Manihar, Muslim Kayasths, Bisati and the Shaikhs