Popularity in Czechia
Numbers
| Ilona (feminine) | |||
| Year | Rank | Times Used | |
| 2016 | - | - | |
| 2015 | - | - | |
| 2014 | - | - | |
| 2013 | - | - | |
| 2012 | - | - | |
| 2011 | - | - | |
| 2010 | #198 | 20 | |
| 2009 | #172 | 27 | |
| 2008 | #159 | 27 | |
| 2007 | #184 | 19 | |
| 2006 | #149 | 28 | |
| 2005 | #142 | 27 | |
| 2004 | #138 | 27 | |
| 2003 | #151 | 22 | |
| 2002 | #135 | 25 | |
| 2001 | #127 | 25 | |
| 2000 | #104 | 39 | |
| 1999 | #81 | 58 | |
| 1998 | #97 | 45 | |
| 1997 | #98 | 41 | |
| 1996 | #91 | 47 | |
| 1995 | #80 | 68 | |
| 1994 | #94 | 52 | |
| 1993 | #91 | 73 | |
| 1992 | #76 | 98 | |
| 1991 | #68 | 121 | |
| 1990 | #68 | 121 | |
| 1989 | #67 | 131 | |
| 1988 | #68 | 130 | |
| 1987 | #67 | 129 | |
| 1986 | #62 | 158 | |
| 1985 | #65 | 153 | |
| 1984 | #60 | 184 | |
| 1983 | #61 | 180 | |
| 1982 | #58 | 217 | |
| 1981 | #57 | 239 | |
| 1980 | #56 | 267 | |
| 1979 | #57 | 321 | |
| 1978 | #54 | 363 | |
| 1977 | #47 | 464 | |
| 1976 | #45 | 546 | |
| 1975 | #41 | 644 | |
| 1974 | #35 | 821 | |
| 1973 | #36 | 788 | |
| 1972 | #33 | 811 | |
| 1971 | #38 | 573 | |
| 1970 | #34 | 655 | |
| 1969 | #30 | 670 | |
| 1968 | #31 | 594 | |
| 1967 | #33 | 591 | |
| 1966 | #33 | 647 | |
| 1965 | #27 | 772 | |
| 1964 | #30 | 680 | |
| 1963 | #27 | 661 | |
| 1962 | #25 | 591 | |
| 1961 | #26 | 618 | |
| 1960 | #31 | 485 | |
| 1959 | #32 | 470 | |
| 1958 | #33 | 448 | |
| 1957 | #39 | 438 | |
| 1956 | #39 | 436 | |
| 1955 | #41 | 360 | |
| 1954 | #42 | 359 | |
| 1953 | #44 | 316 | |
| 1952 | #47 | 266 | |
| 1951 | #48 | 247 | |
| 1950 | #52 | 216 | |
| 1949 | #57 | 166 | |
| 1948 | #54 | 183 | |
| 1947 | #63 | 135 | |
| 1946 | #61 | 126 | |
| 1945 | #56 | 135 | |
| 1944 | #56 | 136 | |
| 1943 | #63 | 99 | |
| 1942 | #72 | 66 | |
| 1941 | #82 | 59 | |
| 1940 | #100 | 35 | |
| 1939 | #87 | 44 | |
| 1938 | #91 | 36 | |
| 1937 | #71 | 44 | |
| 1936 | #70 | 44 | |
| 1935 | #56 | 61 | |
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