Continued commercial success and stardom (2008–2013)
Gautham Vasudev Menon's drama Vaaranam Aayiram was Suriya's only release of 2008 and was his second film with Menon post Kaakha Kaakha. Playing dual roles for the third time in his career, Suriya appeared as father and son, with both characters demanding scenes shot throughout their lives ranging from scenes as a 16-year-old to scenes as a 65-year-old. During the production of the film, Suriya described the project as "unique" and "straight from the heart", describing the physical hardships he endured during the making. He lost weight and prepared a six pack for the film through an eight-month fitness regime without steroids. The film featured him opposite Simran, Sameera Reddy and Divya Spandana and became commercially successful at the box office upon release. Pavithra Srinivasan labelled the film as his "magnum opus", citing that he is "perfect" and that the film for him is a "justified triumph". Similarly, critics cited his performance as "outstanding" and claimed that the film "works because of his performance", whilst other reviewers claimed the film was an "out and out Suriya show". His performance earned him his second Filmfare Award for Best Actor – Tamil, a Tamil Nadu State Film Award Special Prize and the Vijay Award for Best Actor.
In 2009, Suriya's first release was K. V. Anand's action-thriller Ayan, where he played a smuggler. He appeared alongside Tamannaah Bhatia. The film was shot extensively across Tanzania, Namibia, Malaysia and India and featured acrobatic stunts by Suriya, without the use of a stunt double. Upon release, it received positive reviews, with critics citing the film as a "must watch" and Suriya's performance was yet again acclaimed and he found himself nominated for leading awards and won the Vijay Award for Entertainer of the Year, in addition to his seventh nomination for the Filmfare Award for Best Actor – Tamil. The film's success saw him emerge as the most profitable leading actor in Tamil films, following a hattrick of large commercial hits, with film journals suggesting that his success was due to "experiments within the commercial format" and he was successful in "avoiding being typecast". Ayan was the highest-grossing Tamil film of 2009. His next film, K. S. Ravikumar's action entertainer Aadhavan also achieved commercial success, while Suriya's depiction of a hitman was praised. A critic from Sify labelled it as an "out and out Suriya show", stating that "the film rides on the magic of the actor, and his zany shenanigans alone makes it worth a watch" and Rediff.com cited that "he sings, dances, and fights with absolute sincerity, but when he looks at you with tears in his eyes in an emotional scene tailor-made for him, the applause hits the roof", concluding that it is "completely his film".
Suriya's first release of 2010 was his 25th film, Singam directed by Hari, in which he played the role of a police officer, starring alongside Anushka Shetty. The film received positive reviews with The Hindu reviewer noting, "Suriya shows that be it a performance-oriented role or a formulaic concoction he can deliver", while Sify stated, "Ultimately it is Suriya who carries the film to the winning post. His passion and the way he brings an ordinary regular larger-than-life hero character alive on screen is lesson for other commercial heroes." The film won Suriya his second Vijay Award for Best Entertainer, in addition to his eighth nomination for the Filmfare Award for Best Actor – Tamil, and subsequently went on to become the second highest-grossing film of the year. Suriya expanded to Telugu and Hindi films with Ram Gopal Varma's political drama Rakta Charitra. The film was released in Tamil as Ratha Sarithiram, which was partly dubbed and partly reshot. Rajeev Masand noted, "The film belongs to Suriya, and is watchable only for the sheer presence of the Southern star, and for the intensity he brings to his part." Suriya then appeared alongside R. Madhavan and Trisha in a song in Manmadhan Ambu.
Following two special appearances in 2011, in K. V. Anand's Ko and Bala's Avan Ivan, Suriya featured in AR Murugadoss's science fiction action thriller 7 Aum Arivu. He co-starred with Shruti Haasan and played dual roles, as a circus artist and as the Buddhist monk named Bodhidharma, who lived in the 6th century. His performance earned him his ninth nomination for the Filmfare Award for Best Actor – Tamil. The film met with mixed reviews, but was a commercial success and became his first film to gross above ₹1 billion. N. Venkateswaran noted, "If the movie deserves a look, it is only because of the ever-dependable Suriya. He is a treat to watch as Bodhidharma."
His only 2012 release was K. V. Anand-directed action thriller Maattrraan. Acting with Kajal Aggarwal, he played the role of conjoined twins, Vimalan and Akhilan. The film received mixed reviews, and ended up being an average grosser. Critics however praised the film's technical aspects and VFX, in addition to Suriya's performance, which earned him his tenth nomination for the Filmfare Award for Best Actor – Tamil. His brother Karthi dubbed for one of his characters in the Telugu dubbed version. J Hurtado of Twitch Film said, "Suriya is called upon to carry the entire weight of the film on his shoulders as he is surrounded by a very one-dimensional supporting cast."
In January 2012, Suriya was named as the official host of the new game show to be presented on STAR Vijay, Neengalum Vellalam Oru Kodi, the Tamil version of Who Wants to Be a Millionaire?. It began airing on 27 February 2012 and ended on 12 July. His next film was Singam II opposite Anushka Shetty and Hansika Motwani, a sequel to his 2010 film Singam. The film released on 5 July 2013 to mixed reviews from critics. However, the film received a huge opening and emerged one of the highest grossing Tamil films of all time. Suriya was once again acclaimed for his portrayal of Durai Singam and his performance was hailed as "the film's backbone". Singam II was a box office hit and became his second ₹1 billion grosser. Suriya received his eleventh nomination for the Filmfare Award for Best Actor – Tamil for his performance in the film. Suriya distributed the film through his production company 2D Entertainment, founded in 2013. He had signed on to feature in Gautham Vasudev Menon's film Dhruva Natchathiram and reportedly waited for six months to start filming. However, in October 2013, he backed out due to differences with the director and the project lagging too much. In a 2013 interview with the Bangalore Mirror, film producer G. Dhananjayan called Suriya as the "biggest star" in contemporary Tamil cinema and claimed it was mainly because his popularity extended to Telugu and Malayalam speaking audiences as well.