Aaamazzara – Homeworld of the Aaamazzarite species.
Acamar III – Homeworld of the humanoid Acamarians, who finally reunited the marauding Gatherers into their world's mainstream with Capt. Picard's help in 2366.
Achrady VII – Site of a conference supposedly attended by Lwaxana Troi before she changed her plans to visit Enterprise-D. This is likely a ruse by Deanna Troi to get Capt. Picard off-ship for a vacation.
Adarak Prime – Planet in Cardassian space and location of a weapons depot.
Adelphous IV – Destination of the USS Enterprise-D at the time Worf handed over the conn to Data for the night watch after O'Brien's wedding in 2368.
Adigeon Prime – Planet where young Julian Bashir was genetically modified by his parents to enhance his mental and physical skills.
Ajilon Prime – Lone Class-M planet of Ajilon in the disputed Archanis sector, three days' warp from Deep Space Nine, and home to a Federation colony. Half the residents were trapped after Klingons captured two settlements in the northern hemisphere. Kalanda's besieged hospital was located at one end of a peninsula near a Starfleet base at Tananda Bay.
