Sahasranam

1000 (Sahasra) Names of a deity.

Shiva Sahasranam
http://www.hindupedia.com/en/Shiva_Sahasranamam

Vishnu Sahasranam
http://www.hindupedia.com/en/Vishnu_Sahasranamam

There are also 108 names of a deity, Ashtottarashata namavali, a garland (vali) of names.