Macgregor is a distinctive boys' name in United States, ranking #10216 in 2015 with 7 recorded births. The name reached its all-time peak in 2000 with 17 births ranking #4500. Since 1996, the popularity has decreased by 41.7%. In 2015, approximately 1 in every 273,751 boys born was named Macgregor. RISING Recent data shows the name is currently rising.