The 2019–20 coronavirus (COVID-19) pandemic was affirmed to have spread to Bangladesh on March 2020. The initial three known cases were accounted for by the nation’s Institute of Epidemiology, Disease Control and Research (IEDCR) on 7 March 2020. As of 15th April 2020, the Government of Bangladesh has reported that there is a total of 1,231 confirmed cases, 49 recoveries, and 50 deaths in the whole country. In this research, I try to forecast the COVID-19 outbreak in Bangladesh by using a well-known epidemiological model, Susceptible-Infectious-Recovered (SIR) model.