Kaigan (海岸) is a district of Minato, Tokyo, Japan.

Kaigan 1-chome belongs to the Shiba district general branch office, and Kaigan 2-3 chome belongs to the Shibaura-Kōnan district general branch.

Minato City Board of Education operates public elementary and junior high schools.

1-3, 14-19, and 22-30-ban of Kaigan 3-chōme are zoned to Shibahama Elementary School (芝浜小学校) while 4-13, 20-21, and 31-33-ban of 3-chōme are zoned to Shibaura Elementary School (芝浦小学校).

All of 3-chōme is zoned to Konan Junior High School (港南中学校).