- A´Rosa Blu (1990)
- Aallotar (1952)
- Acif (1971)
- Adonia (1998)
- Adonia (2001)
- Adventure (1976)
- Adventure of the Seas (2001)
- Aegean Goddess (1994)
- Aegean Majesty (1996)
- Aegean Myth (1993)
- Aegean Paradise (1990)
- Aida (1996)
- AIDAaura (2003)
- AIDAbella (2008)
- AIDAblu (1990)
- AIDAblu (2010)
- AIDAcara (1996)
- AIDAdiva (2007)
- AIDAluna (2009)
- AIDAmar (2012)
- AIDAmira (1999)
- AIDAnova (2018)
- AIDAprima (2016)
- AIDAsol (2011)
- AIDAstella (2013)
- AIDAvita (2002)
- Albatros (1957)
- Albatros (1973)
- Aleksandr (1965)
- Aleksandr Pushkin (1965)
- Alexander Von Humboldt (1990)
- Alexander Von Humboldt II (1990)
- Alla Tarasova (1975)
- Allure of the Seas (2010)
- Amadea (1991)
- Ambassador II (1970)
- Ambience (1991)
- Ambition (1999)
- Amen (1971)
- Amera (1988)
- Amsterdam (2000)
- Amusement World (1967)
- Andaman Princess (1962)
- Andrea (1960)
- Antares Experience (1993)
- Antic (1984)
- Antonina Nezhdanova (1978)
- Apollo III (1962)
- Aquarius (1989)
- Anar (1955)
- Arcadia (1989)
- Arcadia (2005)
- Arethusa (2008)
- Argentina (1958)
- Arion (1965)
- Arius (1993)
- Arkadiya (1975)
- Arkona (1981)
- Artania (1984)
- Artemis (1984)
- Artemis (1944)
- Artemis K (1944)
- Asean World (1969)
- Asia Star (1992)
- Assedo (1968)
- Astor (1981)
- Astor (1987)
- Astoria (1981)
- Astoria Grande (1996)
- Astra (1965)
- Astra I (1965)
- Asuka (1991)
- Asuka II (1990)
- Athena (1948)
- Atlantic Star (1984)
- Aurora (2000)
- Aurora II (1991)
- Avitak (2002)
- Awani Dream (1966)
- Awani Dream II (1976)
- Azamara Journey (2000)
- Azamara Onward (1999)
- Azamara Pursuit (2001)
- Azamara Quest (2000)
- Azerbaydzan (1975)
- Azores (1948)
- Azure Seas (1955)