Namesakes
Olympic Medalists:
1 gold
(gold) Meinrad Miltenberger 1956 canoe sprint 
Other Royalty:
2 kings, 1 prince
Charles of Belgium (middle name Meinrad) 1903-1983 Belgium
Albert I of Belgium (middle name Meinrad) 1909-1934 Belgium
Leopold III (middle name Meinrad) 1934-1951 Belgium
Saints:
1 saint
Saint Meinrad ?-861