Speech and Phenomena: And Other Essays on Husserl's Theory of Signs, or Voice and Phenomenon: Introduction to the Problem of the Sign in Husserl's Phenomenology,[1] (French: La Voix et le Phénomène) is a book about the phenomenology of Edmund Husserl by the French philosopher Jacques Derrida, published in 1967 alongside Derrida's Of Grammatology and Writing and Difference.

Derrida identifies his theme in the first chapter as the twofold sense of the word sign for Husserl.

Derrida notes that Husserl makes a conceptual distinction in the use of the word sign between expression and indication.

[6] Expression intends towards an ideal meaning and is "tied to the possibility of spoken language.

"[7] Originally translated into English by David B. Allison and published as Speech and Phenomena: And Other Essays on Husserl's Theory of Signs in 1973, a new translation by Leonard Lawlor under the title Voice and Phenomenon: Introduction to the Problem of the Sign in Husserl's Phenomenology was published in 2010.