Macgregor is a distinctive boys' name in United States, ranking #7336 in 2004 with 10 recorded births. The name reached its all-time peak in 2000 with 17 births ranking #4500. Since 1996, the popularity has decreased by 16.7%. In 2004, approximately 1 in every 198,480 boys born was named Macgregor. RISING Recent data shows the name is currently rising.