Note: There are other series with the same name: Atlantis (Andrew J. Peters), Atlantis (Frances Mary Hendry), Atlantis (Gena Showalter), Atlantis (Greg Donegan), Atlantis (Gregory Mone), Atlantis (Thomas Greanias), Atlantis (Voltz)
- Series: Atlantis (Alyssa Day) Series Record # 49495
- Series Tags: paranormal romance (22), Atlantis (5), vampires (3), shapechangers (2), werecat (2), witches (1)
- Atlantis (Alyssa Day)
- 1 Warriors of Poseidon
- 1 Atlantis Rising (2007) by Alyssa Day
- 1.5 Wild Hearts in Atlantis (2007) [SF] by Alyssa Day
- 2 Atlantis Awakening (2007) by Alyssa Day
- 2.5 Shifter's Lady (2008) [SF] by Alyssa Day
- 3 Atlantis Unleashed (2009) by Alyssa Day
- 4 Atlantis Unmasked (2009) by Alyssa Day
- 5 Atlantis Redeemed (2010) by Alyssa Day
- 6 Atlantis Betrayed (2010) by Alyssa Day
- 7 Vampire in Atlantis (2011) by Alyssa Day
- 8 Heart of Atlantis (2012) by Alyssa Day
- 8.5 Halloween in Atlantis (2016) [SF] by Alyssa Day
- 2 Cardinal Witches
- 1 Alejandro's Sorceress (2014) [SF] by Alyssa Day
- 2 William's Witch (2016) [SF] by Alyssa Day
- 3 Damon's Enchantress (2017) [SF] by Alyssa Day
- 4 Jake's Djinn (2019) [SF] by Alyssa Day
- 3 Poseidon's Warriors
- 1 Christmas in Atlantis (2016) by Alyssa Day
- 2 January in Atlantis (2018) by Alyssa Day
- 3 February in Atlantis (2018) by Alyssa Day
- 4 March in Atlantis (2018) by Alyssa Day
- 5 April in Atlantis (2018) by Alyssa Day
- 6 May in Atlantis (2019) [SF] by Alyssa Day
- 7 June in Atlantis (2019) [SF] by Alyssa Day
- 8 July in Atlantis (2020) by Alyssa Day
- February & March in Atlantis (2018) [O/3,4] by Alyssa Day
- 1 Warriors of Poseidon