The issues of sustainable development began to attract researchers in the second half of the twentieth century. Since then, interest in this topic has only increased. The 2030 Agenda for Sustainable Development introduced by the United Nations in 2015 confirmed that sustainable changes require efforts from people, consumers and companies, politicians, economists, and researchers. In particular, special attention is paid to sustainable consumer behaviour. The level of consumption consciousness directly affects the entire chain, from the production of goods to their disposal. In this regard, in recent years, a large number of studies have been conducted on the topic of sustainable consumer behaviour. However, in 2019 the coronavirus pandemic changed the world. The majority of global population was forced to stay at home because of lockdowns, which is why digitalization received a great impetus for development. By influencing daily activities, it has also significantly changed our consumer habits. Thus, in this thesis, the coronavirus pandemic’s effect on sustainable consumer behaviour is being studied. In particular, attention is paid to cultural differences.