What are the names of some famous mythological giants?

Jewish - Nephilim; Goliath; Gog and Magog.

Islam - Adam (reportedly 30 metres tall).

Hinduism - Daityas.

Greek - Gigantes.

Norse - Jotun.

Balts - Neringa.

Bulgarian - Ispolini.

Basque - Jentilak; mariuak.