Kammala jumla mai zuwa: Gundappa Ranganatha Viswanath (an haife shi 12 ga Fabrairu 1949) tsohon dan wasan kurket ne na Indiya. Vishwanath an lasafta shi a matsayin ɗayan mafi kyawun 'yan wasan Indiya a cikin shekarun 1970. Viswanath ya buga wasan cricket na Test don Indiya daga 1969 zuwa 1983, yana yin wasanni 91 kuma ya zira kwallaye sama da 6,000. Ya kuma taka leda a Wasannin Kasa da Kasa daga 1974 zuwa 1982, gami da Kofin Duniya na
1975 da kuma 1979.