What anime is Robin Nico from?

Robin Nico appears in ONE PIECE.

Robin Nico

Robin Nico is voiced by Yuriko Yamaguchi (Japanese), Yuuko Kobayashi (Japanese), Anzu Nagai (Japanese).

ニコロビン

Main character in ONE PIECE.

Height	188 cm (6'2")
Affiliation	~!Straw Hat Pirates (Current); Baltigo (Revolutionaries, Former, Temporary); Alabasta (Baroque Works, Former); Ohara (Former)!~
Position	Archaeologist
Devil Fruit	~!Hana Hana no Mi (Flower Flower Fruit)!~
Devil Fruit Type	~!Paramecia!~
Bounty	~!930,000,000 (previously; 79,000,000, 80,000,000 and 130,000,000)!~

Extracted from AniList description