| Date | Event |
|---|---|
| April 1 | Wangari Maathai born 1940 |
| April 2 | Barbara Caine born 1948 |
| April 3 | Jane Goodall born 1934 |
| April 4 | Maya Angelou born 1928 |
| April 5 | Catherine I, empress of Russia, born 1684 |
| April 6 | Rose Schneiderman born 1884 |
| April 7 | Marjory Stonemand Douglas born 1890 |
| April 8 | Sonja Henie born 1913
Mary Pickford born 1892 - first woman to create and own a production company |
| April 9 | Marie Luhring born 1920 |
| April 10 | Women are first ordained as pastors in Sweden's Evangelical Lutheran Church, 1960 |
| April 11 | Ellen Goodman born 1941 |
| April 12 | Eleanor Touroff Glueck born 1883 |
| April 13 | Eudora Welty born 1909 |
| April 14 | Anne Sullivan Macy born 1866 |
| April 15 | Vigdis Finnbogadottir born 1930 |
| April 16 | Beverly Kelley becomes first female commander of a Coast Guard ship, 1979 |
| April 17 | Isabel Barrows born 1845 |
| April 18 | Women's World Fair opens in Chicago 1925 |
| April 19 | Sarah Kemble Knight born 1666 |
| April 20 | New Zealand-born American Helen Thayer, traveling on foot and on skis, reaches the North Pole with her sole companion, a husky, 1988 |
| April 21 | Rev. Dr. Georgia Elma Karkness born 1891 |
| April 22 | Rita Levi-Montalcini born 1909 |
| April 23 | Dame Edith Ngaio March born 1899 |
| April 24 | Barbra Strisand born 1942 |
| April 25 | Ella Fitzgerald born 1918 |
| April 26 | Sixteen-year-old Sybil Lidington rides through towns in New York and Connecticut warning citizens of advancing British troops and amassing resistance, 1777 |
| April 27 | Shelia Scott born 1927 |
| April 28 | Blossom Dearie born 1926 |
| April 29 | Florence Sabin becomes the first woman elected to the National Academy of Sciences, 1925 |
| April 30 | Even Arden born 1912 |