The Trans Adriatic Pipeline (TAP; Albanian: Gazsjellësi Trans-Adriatik; Greek: Διαδριατικός Αγωγός Φυσικού Αερίου, romanized: Diadriatikós Agogós Fysikoú Aeríou; Italian: Gasdotto Trans-Adriatico) is a natural gas pipeline operational since 2020, running from Greece through Albania and the Adriatic Sea to Italy. It is the final section of the Southern Gas Corridor originating in Azerbaijan. As of 2022, capacity is 10 bcm per year.
The natural gas originates in the second stage of the Shah Deniz (Azerbaijan) gas field development in the Azerbaijani section of Caspian Sea flowing through the South Caucasus Pipeline and the Trans Anatolian Pipeline (TANAP). The TAP has been supported by European institutions and seen as a "Project of Common Interest" to enhance energy security and diversify gas supplies for European markets.It is operated by a Swiss joint venture and owned by BP (20%), SOCAR (20%), Snam (20%), Fluxys (20%) and Enagás (20%).