Alberto Gaitero Martín[a] (born 3 July 1996) is a Spanish judoka.

Gaitero won the silver medal in the men's 66 kg event at the 2018 Mediterranean Games held in Tarragona, Spain.

In 2021, Gaitero competed in the men's 66 kg event at the Judo World Masters held in Doha, Qatar.

[3] He also won one of the bronze medals in the men's 66 kg event at the 2021 European Judo Championships held in Lisbon, Portugal.

[4] Gaitero competed in the men's 66 kg event at the 2020 Summer Olympics in Tokyo, Japan where he was eliminated in his first match by Georgii Zantaraia of Ukraine.