What does Rainer mean?
Variant of Raynor. Related surnames are occasionally used as given names. Mount Rainier is an important landmark named for a British naval officer, but the Indian name was Tacoma or Tahoma, meaning "snowy peak". Modern use of Rainier (ray-NEER) may be influenced by Prince Rainier of Monaco. Poet Rainer Maria Rilke.
How popular is Rainer?
Rainer is an uncommonly occurring given name for men but a very prominent surname for both adults and children (#9598 out of 150436, Top 6%). (2000 U.S. Census)
Raymond (#264 last year) is the only prominent alternative form of Rainer (outside Top 1000). Adoption of this relation of Rainer reached its most widespread during 1910-1919 (#15) and has become significantly diminished since (#264, down 25.3%), with Raymond becoming less in vogue. Displayed below is an analysis of the usage of the boy name Rainer and affiliated names. (Top 1000 Baby Names Records, 2014)
Suggested similar baby names are Caine, Daine, Dayner, Gainer, Garner, Haider, Heiner, Joiner, Mariner, Nailer, Rafer, Raice, Raiden, Rainart, Rainger, Rains, Ranger, Rayder, Raynes, Rider, Riker, Tailer, Tanner, Wagner and Warner. These names tend to be more commonly used than Rainer.