Club Esportiu Constància is a Spanish football team based in Inca, Mallorca, in the autonomous community of the Balearic Islands.

[3] Constància has played 11 seasons in the Segunda División during the 20th century, becoming the second-most successful football club in the history of the Balearic Islands.

[6] Inca was left without a football club during many years, something that only changed in 1921 with the creation of FC Inquense, related to the same recreation organisation.

According to recent investigations, Constància was one of the most retaliated football clubs in Spain, and four of its players were executed by the Francoist troops.

After the end of the Civil War in 1939, the Spanish football competitions were restructured, and Constància was selected to play in the Segunda División because of its championship the season before.

[13] Constància maintained the category for four consecutive seasons, of which 1943-44 stood out, as the club finished third and almost achieved promotion to La Liga.

[14] The following season, Constància played the final match of the regular season against CD Mallorca with both teams close to the relegation zone, and the match ended in favor of Mallorca after many controversial decisions by referee Agustí Cruellas, remembered in Inca for decades, after which Constància had to participate in the relegation play-off.

[15] After the relegation to the Tercera División in 1945, Constància was not able to return to the second tier quickly and even had to temporarily cease its activity after a severe institutional and economic crisis.

Moreover, the rivalry between Constància and RCD Mallorca was lost after the 1960s because of the lack of direct confrontations and the geographical distance between Palma and Inca.