Macgregor is a distinctive boys' name in United States, ranking #11907 in 2009 with 6 recorded births. The name reached its all-time peak in 2000 with 17 births ranking #4500. Since 1996, the popularity has decreased by 50.0%. In 2009, approximately 1 in every 330,551 boys born was named Macgregor. RISING Recent data shows the name is currently rising.