Joseph Lual-Acuil Jr. (born 26 April 1994) is a South Sudanese-Australian professional basketball player for Manisa Basket of the Turkish Basketbol Süper Ligi (BSL).

Due to the civil war, he was relocated to a refugee camp in Uganda at the age of three where he lived for three years until his family moved to Australia.

[6] On 17 December 2017, Lual-Acuil recorded a double-double and college career-highs of 31 points and 20 rebounds, shooting 10-of-15 from the field, along with three blocks and two assists in a 118–86 blowout win over Savannah State.

[3] On 13 August 2018, Lual-Acuil started his professional career with Hapoel Jerusalem of the Israeli Premier League, signing a three-year deal.

[9] On 6 February 2019, Lual-Acuil agreed terms to join the Hungarian team Atomerőmű SE,[10] but eventually the deal fell through.

[11] On 5 March 2019, Lual-Acuil recorded a season-high 27 points in his fourth game with Galil Elyon, shooting 11-of-17 from the field, along with eleven rebounds and three blocks in an 86–65 win over Hapoel Kfar Saba.

Lual-Acuil helped Galil Elyon reach the league finals, where they eventually were defeated by Maccabi Haifa.

[15] After playing for the Phoenix Suns in the 2022 NBA Summer League,[16] Lual-Acuil joined the Nanjing Monkey Kings of the Chinese Basketball Association (CBA) for the 2022–23 season.

[31] In 2022, Lual-Acuil was selected to play for the South Sudanese national team in the FIBA World Cup Qualifiers.