What alter ego is named in the title of Beyoncé’s 2008 album I Am...?

The alter ego named in Beyoncé’s 2008 album title I Am... Sasha Fierce is Sasha Fierce.

The double album presents two sides of Beyoncé’s artistic persona. The I Am... disc emphasizes more personal and emotional songs, while the Sasha Fierce disc focuses on bold, high-energy performance material. Beyoncé described Sasha Fierce as a stage persona associated with confidence and the intensity of performing.

The album was released in November 2008 and included major singles such as “If I Were a Boy,” “Single Ladies (Put a Ring on It),” “Halo,” and “Diva.” Its two-disc concept helped explain the album’s contrasting moods and arrangements.

Beyoncé later said she had retired the Sasha Fierce persona, explaining that she no longer needed to separate her stage identity from her personal self. “Yoncé” is another nickname associated with Beyoncé, but it is not the alter ego named in this album title.