This dataset contains excess mortality data for the period covering the 2020 Covid-19 pandemic. The data contains the excess mortality data for all known jurisdictions which publish all-cause mortality data meeting the following criteria: daily, weekly or monthly level of granularity; includes equivalent historical data for at least one full year before 2020, and preferably at least five years (2015-2019) and; includes data up to at least April 1, 2020