The National Centre for Social Research (EKKE), in the framework of the ELIDEK-funded pilot project "Public Discourse Fact Checking-Check4facts", conducted an online survey on the sources of information and the public's views on the credibility of public information. A quantitative survey using an online questionnaire was conducted among a nationwide convenience sample of 1370 people (aged 17+) during the period 26/11/2021 to 26/05/2022. The data file and survey questionnaire are freely available in the Resources section of this data project (in Greek language).