Seaview is a suburb of Timaru, in the South Canterbury area and Canterbury region of New Zealand's South Island.

It is located immediately west of the town centre.

Before the 2023 census, Seaview had a smaller boundary, covering 0.73 km2 (0.28 sq mi).

The percentage of people born overseas was 15.5, compared with 27.1% nationally.

Although some people chose not to answer the census's question about religious affiliation, 48.0% had no religion, 39.4% were Christian, 0.3% had Māori religious beliefs, 2.0% were Hindu, 0.1% were Muslim, 0.1% were Buddhist and 2.3% had other religions.