|Birth:||6 February 1907?|
|Death:||fl.6 February 2020|
|Age:||113 years, 0+ days?|
Mariana Akiss (6 February 1907 -fl. 6 February 2020) was a Guinea-Bissauan supercentenarian claimant.
Mariana Akiss claimed to have been born in Catio, Guinea-Bissau on 6 February 1907. She celebrated her claimed 113th birthday on 6 February 2020. If her age is true, she could be oldest known woman ever from Guinea-Bissau.
She was last confirmed alive on her claimed 113th birthday when she lived in Catio, Guinea-Bissau on 6 February 2020.
- (...)feliz aniversário avó Mariana Akiss (avó Nana china di sua) Vania Dias Mendonça on Facebook, 6 February 2020
- (...)nha dona faci aos 113 anos mame di nha pape Vania Dias Mendonça on Facebook, 6 February 2020