Arbaiyah Abdul Manan on December 1, 1977) is a Malaysian actress who stars on the popular police drama, Gerak Khas. She won the Berita Harian's Anugerah Bintang Popular Award for Most Popular TV Actress in 2000, 2001, 2002, and 2003.
Abby Abadi was a member of the girl-group Elite, before leaving it in 1998. She joined the Wheel of Fortune-based game show Roda Impian during its second season, as co-host. She later left the show.
Abadi was also filming for the TV series Gerak Khas, playing one of the leads, Inspektor Aleeza. Its popularity led in 2001 to a hit feature film based on the series. Two sequels followed, with more modest success. In 2005, she had a part as Atikah on Kamasutra.
Abadi married her co-star, Norman Hakim (Inspektor Haris), in 2002. After a marital crisis in 2006, during which they filed for divorce, they renewed their vows.