2019–20 ASUN Conference men's basketball season

The 2019–20 ASUN Conference men's basketball season began with practices in October 2019, followed by the start of the 2019–20 NCAA Division I men's basketball season in November. Conference play begins in January 2020 and concluded in March 2020. It was the 42nd season of ASUN Conference basketball.

Preseason
On October 11, 2019, the conference announced its preseason honors and polls.

Preseason men's basketball coaches poll
(First place votes in parentheses)
 * 1) Liberty (7) 79
 * 2) North Florida (2) 74
 * 3) FGCU 60
 * 4) NJIT 51
 * 5) Lipscomb 40
 * 6) North Alabama 35
 * 7) Jacksonville 32
 * 8) Kennesaw State 20
 * 9) Stetson 14

Preseason men's basketball media poll
(First place votes in parentheses)
 * 1) Liberty (44) 429
 * 2) North Florida (2) 340
 * 3) FGCU 314
 * 4) Lipscomb (2) 298
 * 5) NJIT 240
 * 6) North Alabama 189
 * 7) Jacksonville 161
 * 8) Kennesaw State 99
 * 9) Stetson 90

Honors

 * Preseason Player of the Year: Caleb Homesley, Liberty
 * Preseason Defensive Player of the Year: Wajid Aminu, North Florida
 * Fan-Voted Preseason Player of the Year: Christiaan Jones, Stetson
 * Fan-Voted Preseason Defensive Player of the Year: Jahlil Rawley, Stetson

Conference awards
On March 3, 2020, the ASUN announced its conference awards.