Efrem Reynard Montgomery Jr. (born September 12, 1999) is an American basketball player for MKS Dàbrowa Górnicza of the Polish Basketball League (PLK). He played college basketball for the Kentucky Wildcats.
Montgomery attended Lincoln Park Academy in Fort Pierce, Florida for middle school and started playing at the varsity level as a 6'8" seventh grader. As an eighth grader, Montgomery and the Greyhounds won the Florida District 12-4A championship.
Montgomery first attended Montverde Academy for his freshmen and sophomore year, where he played alongside current Net Ben Simmons.
He later transferred to Wheeler High School for his junior and senior year. He averaged 25.6 points, 13.6 rebounds, and 4.3 assists at Wheeler.
Montgomery originally committed to Auburn University on September 22, 2016. However, when Auburn was involved in the college basketball corruption scandal, Montgomery decommitted on September 27, 2017.
On April 9, 2018, Montgomery committed to play college basketball at the University of Kentucky.
Montgomery had his first double-double of 11 points and 13 rebounds in a win over South Carolina. As a freshman, Montgomery averaged 3.8 points and 4.1 rebounds per game. On December 7, 2019, Montgomery scored a career-high 25 points as Kentucky defeated Fairleigh Dickinson 83âÂÂ52. In the regular season finale versus Florida, Montgomery hit the game-winning tip-in with 11 seconds left. He averaged 6.1 points, 5.4 rebounds, and 1.1 blocks per game. Following the season, he declared for the 2020 NBA draft.
After going undrafted in the 2020 NBA draft, Montgomery signed with the Milwaukee Bucks. He was waived on December 17.
On January 4, 2021, he signed with NevÃÂà ¾is-OPTIBET of the Lithuanian Basketball League. On September 1, Montgomery signed with Soproni KC of the Nemzeti Bajnokság I/A.
On August 3, 2022, Montgomery signed with Aomori Wat's of the Japanese B.League.
On October 28, 2024, Montgomery joined the Birmingham Squadron.
On August 15, 2025, he signed with MKS Dàbrowa Górnicza of the Polish Basketball League (PLK).
|- | style="text-align:left;"| 2018âÂÂ19 | style="text-align:left;"| Kentucky | 37 || 10 || 15.1 || .480 || .200 || .567 || 4.1 || .4 || .4 || 1.0 || 3.8 |- | style="text-align:left;"| 2019âÂÂ20 | style="text-align:left;"| Kentucky | 28 || 25 || 24.1 || .518 || .167 || .667 || 5.4 || .6 || .4 || 1.1 || 6.1 |- class="sortbottom" | style="text-align:center;" colspan="2"| Career | 65 || 35 || 19.0 || .500 || .188 || .625 || 4.6 || .5 || .4 || 1.1 || 4.8
E.J. is the son of Efrem and Glenda Montgomery and has two sisters Brittni and Brandy.