Tyla-Jay Vlajnic (Serbian Cyrillic: Таjла Џеj Влаjнић; born 6 November 1990) is an Australian-born Serbian footballer who plays for A-League Women club Western United and the Serbia women's national team. She previously played for Melbourne City in the A-League Women, in the Women's National Premier League, Bulleen Lions in the National Premier Leagues Victoria Women, Seattle Sounders in the American Women's Premier Soccer League (WPSL), and for Spartak Subotica in the Serbian Women's Super League.