Siyddeq is a direct Quranic name for boys that means âtruthfulâ, âloyalâ, âdevotedâ, âtrue friendâ. The Quran uses this word in descriptions of Prophet Yusuf, Ibrahim and Idrees, peace be upon them. Siyddeq is the title of Abu Bakr, may Allah be pleased with him, who was the closest companion of Prophet Muhammad ï·ș.