The 2020–21 season was the 75th season in HNK Rijeka’s history.

It was their 30th successive season in the Croatian First Football League, and 47th successive top tier season.

Source: Competitive matches Source: 2020–21 Croatian First Football League article

Source: Croatian Football Federation Source: Croatian Football Federation[3] Source: uefa.com Updated 23 May 2021.

Source: Competitive matches Source: Competitive matches Source: nk-rijeka.hr Source: nk-rijeka.hr Source: Glasilo Hrvatskog nogometnog saveza Source: Glasilo Hrvatskog nogometnog saveza Spending: €0 Income: €9,600,000 Expenditure: €9,600,000