Daniel Vivian Moreno (born 5 July 1999) is a Spanish professional footballer who plays as a centre-back for La Liga club Athletic Bilbao and the Spain national team.

[2] In June 2016, he moved to Athletic Bilbao,[3] being initially a member of CD Basconia, the club's farm team in Tercera División.

[7] He scored his first goal as a professional the following 12 February, in a 3–3 home draw against Girona FC, and ended the campaign as a starter after contributing with 32 appearances.

[8] On 11 September, he scored his first goal for the club at San Mamés, in a 2−0 victory over RCD Mallorca, heading in a cross from Iker Muniain.

[18] Vivian debuted for the unofficial Basque Country national team in May 2019 during a goalless away draw against Panama for which a small, youthful and inexperienced squad was selected.