MV Alta is an abandoned merchant vessel currently located in Ireland.[1] Constructed in 1976 with the name Tananger, Alta was abandoned at sea in October 2018 and washed ashore in Ireland in February 2020, where her wreckage remains.

Alta was constructed in 1976 as the Tananger, and has had several other names before becoming the Alta in 2017. By 2015, she was equipped with an Automatic Identification System (AIS) which allowed her movements to be tracked. She periodically switched the AIS on and off as she mostly travelled around the Mediterranean Sea. Deactivating the AIS is unusual, as is the numerous name changes the ship had in her later years, which can indicate involvement in illegal activity.