The World Health Organization has declared the COVID-19 outbreak a pandemic. The causative agent for COVID-19 is an RNA virus of the Coronaviridae family. In addition to the respiratory and other complications, a significant proportion of COVID-19 patients show neurological manifestations. Dementia is a neurocognitive disorder, the prevalence of which is projected to increase in the coming decades. This review provides an overview of the effects of COVID-19 on dementia patients.