Namesakes for IVAN:
  Kings and Tsars of Bulgaria: 10 tsars
      Tsar Ivan Vladislav (a.k.a. John)   1015-1018
      Tsar Ivan Asen I (a.k.a. John)   1189-1196
      Tsar Kaloyan (a.k.a. Ivan, John, Kalojan)   1196-1207
      Tsar Ivan Asen II (a.k.a. John)   1218-1241
      Tsar Ivan Asen III (a.k.a. John)   1279-1280
      Tsar Ivan II (a.k.a. John)   1298-1299
      Tsar Ivan Stefan (a.k.a. John)   1330-1331
      Tsar Ivan Aleksandar (a.k.a. John)   1331-1371
      Tsar Ivan Shishman (a.k.a. John)   1371-1395
      Tsar Ivan Sratsimir (a.k.a. John)   1356-1397
  Hurricanes and Tropical Storms: 3 hurricanes
      Hurricane Ivan   1980
      Hurricane Ivan   1998
      Hurricane Ivan   2004
  Nobel Prize Winners: 1 literature, 1 medicine
      (literature) Ivan Bunin   1933
      (medicine) Ivan Petrovich Pavlov   1904
  Grand Dukes and Tsars of Russia: 4 tsars, 2 dukes
      Duke Ivan I   1325-1341
      Duke Ivan II   1353-1359
      Tsar Ivan III the Great   1462-1505
      Tsar Ivan IV the Terrible   1533-1584
      Tsar Ivan V   1682-1696
      Tsar Ivan VI   1740-1741
  Saints: 1 saint
      Saint Ivan
  Sports Stars: 1 hockey
      (hockey) Ivan "Ching" Johnson   1958
  Notable Writers: 1 author
      (author) Ivan Turgenev   1818-1883