The Associação de Futebol de Aveiro (Aveiro Football Association) is one of the 22 District Football Associations that are affiliated to the Portuguese Football Federation. The AF Aveiro administers lower tier football in the district of Aveiro.

União Desportiva Oliveirense (UDO), commonly known as Oliveirense, is a Portuguese sports club from the city of Oliveira de Azeméis, in Aveiro District. The club was founded on 25 October 1922. The main football team currently plays at the Estádio Carlos Osório which holds a seating capacity of 4,000 and plays in Liga Portugal 2. As a multisports club it fields very successful teams in rink hockey and basketball as well. Its rink hockey team has won the Taça de Portugal on three occasions whilst its basketball team has won the Portuguese Basketball SuperCup and the Portuguese Basketball Cup. The Kelly–Simoldes–UDO cycling team, which holds a UCI Continental team licence, is affiliated with União Desportiva Oliveirense.