Johanna Leigh Griggs is an accomplished Australian television presenter and a former competitive swimmer. Born on October 17, 1973, she made her mark in the swimming world by winning a bronze medal at the 1990 Commonwealth Games. Despite her battle with chronic fatigue syndrome, Griggs made a successful comeback in 1993, setting the fastest time in the world for the 50-metre backstroke race at the Australian Swimming Championships. She retired from competitive swimming the following day. Transitioning to television, Griggs has been a prominent figure at the Seven Network since 1993, hosting various sports events and lifestyle shows, including the Australian Open, Olympic Games, Commonwealth Games, Better Homes and Gardens, and House Rules. Additionally, she has been recognized for her contributions, receiving an honorary Doctor of Letters from Macquarie University in 2009 and being appointed as a Member of the Order of Australia in the 2020 Australia Day Honours. Griggs is also known for her personal life, having been married to actor Gary Sweet and later to building foreman Todd Huggins. Johanna Griggs continues to inspire and entertain audiences with her versatile career and remarkable achievements.

Johanna van Beethoven, born Johanna Reiß, was the sister-in-law of the renowned composer Ludwig van Beethoven. Her life is marked by a bitter custody battle over her son Karl, which became one of the most distressing episodes in Beethoven's life. Johanna, the daughter of a wealthy Viennese upholsterer, faced legal troubles, including a conviction for embezzlement and calumny. Her tumultuous relationship with Beethoven intensified after the death of her husband, Kaspar Karl, as they engaged in a prolonged legal struggle for the custody of Karl. Despite her efforts, Beethoven emerged as the victor in the custody battle, but the consequences for Karl were likely detrimental, as he later attempted suicide. Johanna's life was marred by financial difficulties and legal disputes, and her strained relationship with Beethoven had a profound impact on her family. Johanna van Beethoven's legacy is intertwined with the turbulent events that unfolded within the Beethoven family, leaving a lasting impression on the composer's life and the fate of her son Karl.

Johanna Larsson is a retired Swedish tennis player who achieved notable success during her career. She secured two singles and 14 doubles titles on the WTA Tour, along with 13 singles and 17 doubles titles on the ITF Women's Circuit. With a career-high WTA singles ranking of 45 and doubles ranking of 20, Larsson's talent and determination propelled her to the upper echelons of the tennis world. Notably, in 2017, she and her partner Kiki Bertens reached the final of the WTA Finals in Singapore, showcasing their exceptional skill and teamwork. Larsson's journey in tennis began on the ITF Junior Circuit, where she displayed her potential with a career-high junior ranking of No. 79. Over the years, she overcame challenges, injuries, and tough competition to carve out a successful career in professional tennis. Her dedication and contributions to the sport were also evident in her participation in the Sweden Fed Cup team, where she maintained an impressive win–loss record of 50–30. Johanna Larsson's impact on the tennis world and her achievements serve as an inspiration to aspiring athletes and fans worldwide.

Johanna Nichols, born in 1945 in Iowa City, Iowa, is a distinguished American linguist and professor emerita at the University of California, Berkeley. With a Ph.D. in Linguistics from the same institution, her extensive research interests encompass the Slavic languages, linguistic prehistory of northern Eurasia, language typology, ancient linguistic prehistory, and the languages of the Caucasus, particularly Chechen and Ingush. Nichols is renowned for her profound contributions to these fields. She has received numerous honors, including induction as a Fellow of the Linguistic Society of America and election as a member of the Academia Europaea. Notably, her work "Linguistic Diversity in Space and Time" was awarded the Linguistic Society of America's Leonard Bloomfield Book Award in 1994. Additionally, a festschrift titled "Language Typology and Historical Contingency: In honor of Johanna Nichols" was published in 2013. Nichols has authored several influential books, such as "Predicate Nominals: A Partial Surface Syntax of Russian" and "Ingush Grammar". Her scholarly prowess and dedication have solidified her as a leading figure in the field of linguistics.

Johanna Cornelia van der Merwe (7 March 1825 – 15 January 1888) was a courageous Voortrekker heroine known for her resilience during the Weenen massacre. Despite sustaining over twenty assegai wounds during the impi attack on her trekking party in 1838, she survived and went on to marry Hendrik Frederik Delport, with whom she had seven sons, despite being permanently crippled by the attack. Johanna passed away at the age of 62 and was laid to rest in Rouxville. Her remarkable story led to her being honored in various ways, including having an ox-wagon dedicated to her during the historic 1938 Great Trek Centenary commemoration trek, as well as a South African Navy submarine being named in her honor. Johanna Cornelia van der Merwe's bravery and endurance continue to inspire and resonate with many to this day.