Kiefer Isaac Crisologo Ravena (/ˈkiːfər/; born October 27, 1993) is a Filipino professional basketball player who last played for Shiga Lakes of the B2 League.

[4][6][7][8][excessive citations] During his guesting on the radio show, The Morning Rush, he revealed that he was named after his father's favorite actor, Kiefer Sutherland.

[24] Aside from that, he also led the Blue Eagles to their first championship in the Filoil Flying V Preseason Hanes Cup in 2011[25] while leading them to a 3rd-place finish in the same tournament the following year.

[41] In their Final Four match-up against the DLSU Green Archers in Season 75, Ravena had his then-UAAP seniors career best with 28 points (16 in the payoff period) to go along with 12 rebounds and 7 assists.

[54] On March 1, 2016, Ravena announced that he will be suiting up for Mighty Sports for a chance to hone his skills and at the same time prepare for the 2016 PBA draft.

[58][59] On his debut game in the PCBL for the Mighty Sports, he scored 16 points on top of five assists and three steals on their win against the Jumbo Plastic Linoleum Giants.

[63] During their Game 2 match-up, against the Linoleum Giants, Ravena who was named the Most Valuable Player,[64] led the Cavaliers with 18 points, 4 rebounds, 2 assists and 2 steals in a losing effort.

[66] On November 10, 2016, Texas Legends of the NBA D-League has announced that they have signed Ravena as a "developmental player", which meant he would only be used for practice sessions and was not part of the official roster.

[69][70] He made his ABL debut during the first game of their best-three semifinals meeting against the Singapore Slingers wherein he scored 16 points on a losing note for Alab.

[81] NLEX expressed support for Ravena stating that he had passed multiple drug tests by the PBA, as well as by the Samahang Basketbol ng Pilipinas and the Games and Amusements Board believing that he took the pre-workout aid which led to the ban without being aware it contained a substance prohibited by FIBA.

Ravena was part of the 2009 Philippines men's national under-17 basketball squad that was sent to the 2009 FIBA Asia Under-16 Championship wherein they finished 4th place.

[99] Ravena was named as the team captain of the Gilas Cadets in 2015 that will compete together with Bobby Ray Parks Jr., Kevin Ferrer and Marcus Douthit among others at the 2015 SEABA Championship in Singapore.

[100][101] That same squad also competed for the Philippines at the 2015 Southeast Asian Games which was held also in Singapore last June 5–16, 2015,[102][103] wherein they managed to win the gold medal against Indonesia.

[106] On June 27, 2017, it was confirmed by Chot Reyes that Ravena together with Von Pessumal, Bobby Ray Parks Jr., Kevin Ferrer and Kobe Paras among others will again play for the Philippines for the 2017 William Jones Cup in Taiwan where they finished in 4th place.

[111][112] On September 19, 2017, it was announced that Ravena along with Jeron Teng, Jeric Teng, LA Revilla, Carl Bryan Cruz, Almond Vosotros, Norbert Torres and Isaiah Austin among others will be part of the national team which will compete as Chooks-to-Go Pilipinas at the 2017 FIBA Asia Champions Cup in China,[113] wherein they finished the tournament in fifth place.

[114] In November 2017, Ravena was named as part of the Gilas Pilipinas line-up that will compete at the 2019 FIBA World Cup qualifiers against Japan[115][116] and Chinese Taipei.

[119] Along with Jeron Teng, Bobby Ray Parks Jr., and Kevin Ferrer, Ravena competed at the 2013 FIBA Asia 3X3 Championship as part of the Philippine national 3x3 team.

[123][124] He was joined by Jeron Teng of La Salle, as well as Nigerian imports Ola Adeogun of San Beda and Bright Akhuetie of Perpetual.

[128] Ravena again represented Team Philippines in an exhibition game held during the FIBA 3X3 World Tour Final this time with Karl Dehesa, Paolo Hubalde and Jayson Castro (who replaced L.A.

He ran out of supplies shortly before a training camp in Australia and took Blackstone Labs DUST, a supplement which is mixed with water and is supposedly similar to C4.

[135] In November 2019, Ravena returned to the national team as he represented the Philippines in the 2019 SEA Games, wherein he won his fifth straight gold medal.

His co-stars will include PBA Superstars Willie Miller, Gary David and Beau Belga together with Eula Caballero, Sophie Albert, Valeen Montenegro, Tuesday Vargas, Yoyong Martirez, Long Mejia, Randy Santiago and Ogie Alcasid.

[142][143] Ravena also starred in his own reality show called Phenoms together with his fellow Atenean and then-girlfriend Alyssa Valdez, who is a 3-time UAAP volleyball MVP and former team captain of the Ateneo Lady Eagles.