Nina Garcia — “Project Runway” judge and Marie Claire magazine fashion director — gave birth to a baby boy over the weekend, she announced Monday.

“Delighted to announce that over the wknd we welcomed 8lb13oz Alexander David Conrod into our home!” the 43-year-old fashionista tweeted Monday.

The Colombian native and her financier husband, David Conrod, are already parents to a 3-year-old son, Lucas.

“Baby is doing great & Lucas is thrilled!” added Garcia, who has served as a judge on the cable TV show for eight seasons.