| 2021 season | ||||
|---|---|---|---|---|
| Manager | Keith Long | |||
| Stadium | Dalymount Park, Phibsborough, Dublin 7 | |||
| Premier Division | 5th | |||
| FAI Cup | Runners-up (vs. St Patrick's Athletic) | |||
| UEFA Europa Conference League | Third qualifying round (vs. PAOK ) | |||
| Top goalscorer | League: Georgie Kelly (21 goals) All: Georgie Kelly (26 goals) | |||
| Highest home attendance | 8,000 (vs. PAOK at Aviva Stadium) (vs. F91 Dudelange at Aviva Stadium) | |||
| Lowest home attendance | 0 | |||
| Biggest win | Bohemians 5—0 Drogheda United (18 June 2021, Premier Division) College Corinthians 0—5 Bohemians (25 July 2021, FAI Cup) | |||
| Biggest defeat | Sligo Rovers 4—0 Bohemians (26 June 2021) | |||
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The 2021 League of Ireland season was Bohemian Football Club's 131st year in their history and their 37th consecutive season in the League of Ireland Premier Division since it became the top tier of Irish football. Bohemians participated in the FAI Cup, the national domestic cup competition, reaching their first final since 2008. Bohemians also competed in the inaugural UEFA Europa Conference League where they set a record for Irish clubs with four consecutive victories in European competition.
Prior to the commencement of the season, and despite no guarantees of live attendances due to the COVID-19 pandemic in the Republic of Ireland, Bohemians announced that they had a record 1,000 members signed up for the forthcoming campaign.