Doki can refer to:
- doki, slang in Cameroon for a forged or fake document
- doki doki, a Japanese expression for a sped-up heartbeat, from the word "doki" ("palpitate")
- Doki, three fictional demon characters in the anime Naruto (see List of Naruto summons)
- Doki, one of the two primary characters in the Korean animation, There She Is!!.
- Doki, is a fictional animated dog who serves as an on-screen friend for viewers of the cable television channel Discovery Kids in Latin America and Discovery Familia in the United States. (in 2013 is rumored to he will be purchased by Viacom Networks)