Siyddiyq 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. Siyddiyq is the title of Abu Bakr, may Allah be pleased with him, who was the closest companion of Prophet Muhammad ï·ș.