Who is the spouse of atlas?

Atlas was not married, but begot with Pleione, daughter of Oceanus and Tethys, to produce the Pleiades by him, seven mountain-star goddess daughters: Teygata, Elektra, Alkyone, Asterope, Kelaino, Maia and Merope.

Atlas and Aethra (another name of Pleione, or her sister) begot Hyas and three or five or seven daughters called the Hyades after their brother because at his death they wept and wouldn't be stopped and so became the cancellation which is called 'Rainy Ones' and heralds the rainy season. Their brother was Aquarius. They are called :

Idothea, Althaea and Adraste;

Philia, Coronis, and Cleis.

Phaesyle, Coronis, Cleeia, Phaeote, and Eudora

Ambrosia, Eudora, Pedile, Coronis, Polyxo, Phyto, and Thyone, or Dione.

Atlas and Hesperis (daughter of Hesperos son of Eos the Dawn, mother unknown) produced the Hesperides, three, four or seven daughters : Aegle, Erythea, Arethusa, Hesperethusa, Hespera, Hesperia, Chrysothemis, Lipara, and Asterope.

Of the Hesperides, one named Erytheia produced a son Eurytion, the herdsman of Geryon who lived on the island of Erytheia near the home of the Hesperides.

There are also daughters of Atlas with no named mother, such as Calypso, goddess of the mythical island of Ogygia; Maera (Sirius's star) who married to Tegeates, the son of Lycaon; and Dione who married Tantalus and produced Pelops and Niobe.