Open central vowel

Open central vowel may refer to:
 * Open central unrounded vowel, a vowel sound written as ⟨ä⟩ or ⟨ɑ̈⟩ in the International Phonetic Alphabet
 * Open central rounded vowel, a vowel sound written as ⟨ɒ̈⟩ in the International Phonetic Alphabet