This study assessed the impact of the COVID-19 pandemic on the number of new contraceptive acceptors in Senegal overall and by method. Monthly service data from March 2019 to December 2020 were extracted for the number of new contraceptive users of IUDs, implants, injectables, and oral contraceptive pills (OCPs). Data were analyzed using descriptive statistics and interrupted time series analysis for trend analyses overall and by the contraceptive method. Following the announcement of the first COVID-19 case in Senegal in March 2020, there was an immediate significant decrease in the number of new acceptors overall, and for new users of implants and injectables. From March–December 2020, the trend in monthly new family planning acceptors increased overall, mainly driven by significant increases in new IUD and implant acceptors. Compared to the period before the onset of COVID-19, there was a statistically significant shift from shorter-acting methods (OCPs, injectables) to long-acting reversible methods (IUDs, implants). Despite the immediate adverse impact of COVID-19-related restrictions, the number of new acceptors rebounded, trends in the number of new monthly acceptors significantly increased, and there was a significant shift to longer-acting methods.