Abstract Since the COVID-19 outbreak in late 2018, growing evidence supported the association between COVID-19 infection & hypercoagulability. We report an interesting case of a right atrial thrombus in a young female who sustained COVID-19 infection few months before this diagnosis, as a result she required an open-heart surgery to extract the thrombus. Introduction Mobile atrial thrombi are rare to occur with few reported cases in literature, since COVID has masked the face of the universe with a completely new disease entity with multiple systemic affection, has also been strongly linked with prothrombotic state, However, only very few counted cases of atrial thrombi have been linked to COVID-19 infection.