Dyadic describes the interaction between two things, and may refer to:
- Dyad (sociology), interaction between a pair of individuals
- The dyadic variation of democratic peace theory
- Dyadic counterpoint, the voice-against-voice conception of polyphony
- People who are not intersex, that is, endosex
- Dyadic kinship terms, kinship terms that express the relationship between individuals as they relate one to the other
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Linguistics
- Dyadic conversational interaction is the dynamics between two particular people, in which eye contact is important and the speaker controls the interaction. According to Ghil'ad Zuckermann, Western conversational interaction is typically both "dyadic" and "contained" (in a relatively short, defined time frame). For example, if one asks a question, one expects to receive an answer immediately thereafter.