Okazaki may refer to one of the following characters:
- Tomoya Okazaki, one of the main protagonists of Clannad, the husband of Nagisa, the father of Ushio, the son of Naoyuki and Atsuko, the grandson of Shino, and the nephew of Yui.
- Nagisa Okazaki, Nagisa Furukawa's name after marrying Tomoya, the wife of Tomoya, the mother of Ushio, the daughter-in-law of Naoyuki, the granddaughter-in-law of Shino, and the niece-in-law of Yui.
- Naoyuki Okazaki, the son of Shino, the older brother of Yui, the husband of Atsuko, the father of Tomoya, the father-in-law of Nagisa, and the paternal grandfather of Ushio.
- Ushio Okazaki, the daughter of Tomoya and Nagisa, the granddaughter of Naoyuki and Atsuko, the great-granddaughter of Shino, and the great-niece of Yui.
- Shino Okazaki, the mother of Naoyuki and Yui, the paternal grandmother of Tomoya, the grandmother-in-law of Nagisa, and the paternal great-grandmother of Ushio.
- Yui Okazaki, the daughter of Shino, the younger sister of Naoyuki, the sister-in-law of Atsuko, the paternal aunt of Tomoya, the aunt-in-law of Nagisa, and the paternal great-aunt of Ushio.