ronald, ronny, rory, ryan, ron, robby, robert, rob, i suggest searching something like babynames.com and search for names that start with r.
An Italian company name that begins with "R" and ends with "o" is Roncato.
Yosemite Yosemite
Rodeo riding is a sport. It begins with R and ends with G.
Renault?
Adrian
Freddy
Zack, Zach, Zachary
the answer to the European fresh water fish that begins with r is Rudd
Redbeard
raspberries
Nick Nolte
Rembrandt van Rijn