三钟经（拉丁文：Angelus），原意为天使，为记述圣母领报及基督降生的天主教经文。

它的格式类似日课。诵念完三钟经后，习惯诵念圣三光荣经。三钟经是默想耶稣基督降生成人奥迹的经文，它包括三节圣经，且每节后加念一遍圣母经。由于诵念三钟经是在早上六时、中午十二时及下午六时，并鸣钟以提醒信友，故得其名为「三钟经」。每逢教宗公开接见活动，教宗都会在圣伯多禄广场与信众一同诵念。

The Angelus (/ˈændʒələs/; Latin for "angel") is a Catholic devotion commemorating the Incarnation. As with many Catholic prayers, the name Angelus is derived from its incipit: Angelus Domini nuntiavit Mariæ ("... the Angel of the Lord declared unto Mary ...") and is practised by reciting as versicle and response three Biblical verses narrating the mystery; alternating with the prayer "Hail Mary". The Angelus exemplifies a species of prayers called the "prayer of the devotee".