Osamu rhymes with:
economou, susumu, tsutomu, abiquiu, abu, accu, agematsu, agnew, alu, andreu, andrew, antoniou, antoniu, aouzou, argue, arvizu, athanassiou, ave, ayscue, ballew, bantu, bartoo, basu, bayanjou, bayou, belew, belue, bienvenu, bilyeu, brochu, buckalew, buckelew, bucklew, bundschuh, burlew, caluzu, cantu, carew, ceaucescu, ceausescu, cefalu, chalifoux, chesebrough, chubu, compu, continue, corlew, curcuru, curfew, daihatsu, danju, declue, deleeuw, demetriou, dentsu, deroo, dezeeuw, discontinue, donaghue, donehoo, donoghue, dragoo, dunahoo, economou, ecru, edu, eigenvalue, elihu, erburu, escue, eskew, espiritu, etsu, fayanjuu, flerfu, florescue, fujitsu, ginsu, gisu, giurescu, gladu, grandnephew, gvaryahu, haiku, hajdu, hanshew, harju, haskew, haydu, hebrew, hetu, holzschuh, honolulu, honshu, huairou, igloo, immu, impromptu, ingenue, iosue, issue, isuzu, jiangsu, juju, kadrescu, kakadu, kakumaru, kamakau, kanemaru, kankaku, karibu, keanu, keiretsu, kennebrew, killebrew, kinnebrew, kismayu, kofu, kudzu, kwazulu, kyushu, lahue, landrieu, larew, lebleu, leffew, lehew, lerew, loew, loewe, luu, maheu, majrooh, malibu, manchu, mangosuthu, marilu, maruyu, marylou, masakazu, masaru, mashalu, massieu, mathew, mathieu, matthew, matzu, mayhew, mengistu, menu, merithew, merrihew, mikidu, minchew, minoru, minshew, mishoe, mitsuru, mongosutu, morphew, mugu, muldrew, mulgrew, negu, nephew, nikou, ninsu, noboru, norimatsu, o'donoghue, o'donohue, oahu, odonoghue, odonohue, okwu, onto, ouagadougou, outokumpu, overvalue, pannu, pelekunu, pelleu, perdew, petru, pettigrew, picchu, picou, popu, quazulu, radu, raju, rearview, reissue, renfrew, rescue, rettew, rilwanu, robidoux, sakau, sandhu, sassou, schmittou, seibu, seiyu, serviou, settsu, shigeru, shimizu, shinxiaku, shugrue, sidhu, sisulu, siu, snafu, subaru, sugrue, sukru, sununu, supervalu, susumu, taegu, taewoo, takushoku, tanu, telugu, tequiliu, theodorou, tofu, tokyu, toru, toshiharu, toshimitsu, transue, tsutomu, tunku, umetsu, undervalue, unrue, unruh, unto, valu, value, vanliew, vanuatu, vanunu, vassiliou, venue, vibhu, virtue, vishnu, w, w., wasiyu, whoopdedoo, wilthew, yanbu, yenlu, yoshikazu, zbigniew, zurfluh
Osamu sounds like:
o'cana, o'guin, o'guinn, o'hagan, o'kane, o'keson, o'quinn, oakman, ocain, ocana, occasion, occhino, ocean, oceana, oceania, ocon, ogan, ogoni, oguin, oguinn, ohagan, okane, okano, okasan, oken, okeson, okin, okinawa, okon, oksana, okuma, okun, okuno, oquin, oquinn, osama, oshima, oshman, osman, osmena, osmium, osmon, osmun, ossman, osuna, oxen, oxman, oxygen, ozanne, ozmun, ozone, ozuna