3999 BBY

The following events took place in 3,999 BBY.

Deaths
{| align=center cellpadding=3 id=toc style="margin-left: 15px;"
 * align="center" colspan=1 | BBY/ABY: 4,002 BBY 4,001 BBY 4,000 BBY - 3,999 BBY - 3,998 BBY 3,997 BBY 3,996 BBY
 * align="center" colspan=1 | BBY/ABY: 4,002 BBY 4,001 BBY 4,000 BBY - 3,999 BBY - 3,998 BBY 3,997 BBY 3,996 BBY