Aldosivi

Club Atlético Aldosivi (usually called simply Aldosivi) is an Argentine football club based in the city of Mar del Plata, Buenos Aires Province. The senior squad currently plays in Primera Nacional, the second division of the Argentine football league system. The club's name comes from the first two letters of the last name of their founders, Allard, Doulfus, Sillard, and Wiriott (the w was changed to a v because there was no W available to telegraph the official announcement).

In 1979, Aldosivi merged with two other clubs from Mar del Plata and was known by the name Defensores del Puerto until 1981 when it returned to the traditional name, which it still uses today.