Club de Fútbol Extremadura "B" was a Spanish football team based in Badajoz, in the autonomous community of Extremadura.

Founded in 1958, they were the reserve team of CF Extremadura, and played their last season in Tercera División – Group 14.

Founded in 1958 as Club Deportivo Almendralejo, the club became a farm team of CF Extremadura in 1960, being renamed Club de Fútbol Extremadura B in the following year.

In 1975, president Juan Navia Tolosa left Extremadura Atlético after having discrepancies with Extremadura, and the club later ceased activities.

They played for two seasons in the 1980s before returning to action in 1994, now back as Extremadura B.