Bakhtiyar Batyrzhanuly Zaynutdinov (Kazakh: Бақтияр Батыржанұлы Зайнутдинов, romanized: Baqtiiar Batyrjanūly Zainutdinov; born 2 April 1998) is a Kazakh professional footballer who plays for Süper Lig club Beşiktaş and the Kazakhstan national team.

Known for his versatility, he mainly plays as a left-sided winger or full-back alongside a host of other positions.

[3] On 4 October 2018, in an 2017–18 UEFA Europa League group stage game against Rennes, he scored his first continental goal, becoming at 20 years and 6 months the youngest Kazakh goalscorer in an UEFA club competition final stage game.

[7] On 21 August 2023, he signed a four-year contract with Süper Lig club Beşiktaş.

This biographical article relating to Kazakhstani association football is a stub.