Jiří Louda (3 October 1920 – 1 September 2015) was a Czech heraldist and veteran of World War II. Louda was considered among the leading coats of arms designers in the Czech Republic and the former Czechoslovakia. He designed the current coat of arms of the Czech Republic, adopted in 1992, which incorporates the displays of the three historic Czech lands. Louda also designed the standard (official presidential flag) of President of the Czech Republic, which was adopted in 1993 following the country's independence. Additionally, Louda created coat of arms of the Olomouc Region, as well as the municipal coats of arms for more than 200 towns and cities throughout the Czech Republic.
Louda was born in Kutná Hora, Czechoslovakia, on 3 October 1920. He fled to the United Kingdom during World War II and the Nazi occupation of Czechoslovakia, where the Czechoslovak government-in-exile was headquartered. He joined the exiled Czechoslovakian military during World War II and served as a paratrooper.
He is best known in the English-speaking world to students of royal and noble genealogies and royal families as co-author with Michael Maclagan (who wrote the text, while Louda compiled and drew the tables) of the best-selling Lines of Succession, first published in 1981, and subsequently reprinted and revised on several occasions.
- With Michael Maclagan. Lines of Succession: Heraldry of the Royal Families of Europe. London: Orbis & New York: Clarkson Potter, 1981; revised and updated edition, 1991; adapted small-format edition, 2002. (The 1981 American edition was published as Heraldry of the Royal Families of Europe, but later editions took the European title.)
- Velinger, Jan (2015-09-02). "Heraldist, WWII vet, Jiří Louda dies at 94". Radio Prague. Retrieved 2015-09-28.
- "Zomrel heraldik Jiří Louda, autor českého štátneho znaku a prezidentskej zástavy". Aktuality.sk. 2015-09-02. Archived from the original on 2015-09-29. Retrieved 2015-09-28.
- "Jiri Louda, armorist - obituary". The Telegraph. 1 October 2015. Retrieved 3 October 2015.