この湾はニューヨーク港と呼ばれる。

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

bay; gulf; inlet

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

to call out (to); to call; to invoke; to summon (a doctor, etc.); to invite; to designate; to name; to brand; to garner (support, etc.); to gather; to take as one's wife