- Ancestry.co.uk Surname Board - R - Free Database for thousands of surnames
- Roots Surname List -- Interactive Search
- Rothschild - preserves and arranges the family record.
- Ramsdale / Arthur
- Renslow - information on the history of the family and locations of historical records.
- Raile - includes family history and resources for German-Russian genealogy.
- Ratzenberger
- Rem - list of family members.
- Rostock Family Tree - descendants of Rostock farm, Småland, Sweden.
- Rud / Rude - other surnames include: Vorce, Erickson, Villnow, Orcutt, Ells, Hall, Gaddis, Springer, Mackaman, Tappan, and Tebo.
- Robertson (1)
- Ron - history and information about the Ron (Rón) family.
- Roolf - Ostien, Ostein, Rolfe, and Rolf.
- Robey / Robie / Roby (2)
- Rawson
- Reynolds (2)
- Rose - Rose family genealogy records nationwide, all nationalities.
- Rich - for those whose surname is Rich.
- Roark (1)
- Rader - also Reader, Raeder, Roder, Roeder and Rotter.
- Ransom - with links to other family pages, contents of surname researcher, and the John E Ransom collection at Buffalo & Erie County Public Library.
- Rickenbach / Rickenbacher / Riggenbach / Riggenback - starting from the year 1480 in Basel, Switzerland.
- Reid (2)
- Rhys / Roberts - family history and genealogy page including Morgan, David, Wales, Pennsylvania, Glamorgan, Michigan, and Ystradgynlais.
- Ramsey@
- Randle - resource page for the surname.
- Roan - family history and genealogy related to the descendants of O'Ruadhain. Includes the surnames: Roan, Rohan, Rowan, Roughan and Ruane, along with a few others.
- Reedy - Riedi, Riedy, Reedy descendants of Virgina and Pennsylvania. From the line of Hanzet L. Riedi born about 1650 in Switzerland.
- Ramsdell - Lynn, MA and Plymouth MA.
- Rider - Genealogy web site containing over 500 surnames mostly from North Carolina, South Carolina, Georgia, Virginia, Tennessee, Indiana, Michigan, and Ohio.
- Rendall - uniting family members around the world.
- Rowen - also including: Mackie, Quinn, Dickerson, Manion, Rankin, Watkinson, Clark, Ogden, and other families.
- Redgrave (1)
- Reagan / Weiler - additional genealogy and family research related to the surnames of Alexander, Duda, of Ohio and Illinois.
- Rodwell - as descended from Richard Rodwell of Wyverstone, Suffolk, England (died 1646). Includes family tree and discussion forum.
- Riley (2)
- Raymer - including various spellings, such as Ramer, Reamer And Raimer.
- Robison - also Clinkinbeard, Esquivel, Frederick, Linn, Lucas, Reisinger, Vanderburgh and Thornton.
- Robbins
- Riper - results of John and Karin Riper's genealogical research on their and many other families. The history of the names Rieper, Van Riper and Riper. Index of surnames.
- Roderick
- Ranger / Larocque - index of family names includes: Dufresne and Durocher. Compiled by Bob Ranger of Syracuse, NY, USA.
- - one-name study.
- Reese (2)
- Reid - information about the descendants of Alexander Reid born in Banffshire Scotland in the 1750s.
- Ririe Families
- Ross (2)
- Risley - nonprofit, private, national organisation preserving the history and genealogy of the Risley family.
- Rowley (1)
- Roorda - and Roorda van Genum genealogy.
- Rowles (1)
- Redford - list of surnames connected with descendants of Francis Redford who came to Virginia in 1645.
- Reeds - and associated family names, from England to Australia.
- Rutter - includes research on the Rutter, Kemp, Lynerd, and Bien families of Baltimore, Sauer of Indiana, Fouche of Virginia, Pozycki-Tylecki of Pennsylvania, and others.
- Rampleys - births, marriages and deaths of Rampleys recorded at the Family Record Centre, London, U.K.
- Rowe - also including Hendy, Connor, Maker, Mitchell, and others.
- Regenos - genealogical research.
- Roovers - family tree from circa 1400 to the present.
- Rutkowski - dedicated to the decendants of Boleslaw Rutkowski, and Scholastica Matuk.
- Rye - includes pictures, history, and the family line.
- Richter - other surnames studied include: Bateman, Arndt, Naetebusch, Ferse, Murray, McDonald, Curwen, Burns, Byrne, and Hohndorf.
- Ratcliffe
- Rogers (1)
- Rehill - family history, and other fun stuff.
- Robbie
- Rumreich - family tree and history.
- Richey - other surnames include Sanders and Steele.
- Raine - also Cook(e), Pemberton, Dodsworth, and others, with particular attention paid to those families in County Durham, Norfolk, and Suffolk.
- Rocheteau / Roshto
- Rowser / Rouser / Rowzer / Rouzer - shares genealogy and family history.
- Ruda Genealogy - aims to find people throughout the world with the same surname.
- Ritchie - researching the Brand, Edwards, Ray, Ritchie, and Royer surnames.
- Rumore - documenting the Rumore family from the birth of Antonino Rumore in 1761 to the present.