AABA

AABA may refer to:


 * AABA form, a musical form common in Tin Pan Alley songs
 * All-American Basketball Alliance, a defunct basketball league
 * All-American Basketball Alliance (2010), an unrelated all-white basketball league announced in 2010
 * alpha-Aminobutyric acid, an isomer of the amino acid aminobutyric acid
 * Altaba ticker symbol
 * Rhyme scheme of the Rubaʿi, a type of Persian poem, also known as "Rubaiyat Quatrain"