A proxy wedding or (proxy marriage) is a wedding in which one or both of the individuals being united are not physically present, usually being represented instead by other persons. If both partners are absent a double proxy wedding occurs.
Marriage by proxy is usually resorted to either when a couple wish to marry but one or both partners cannot attend for reasons such as military service, imprisonment, or travel restrictions; or when a couple lives in a jurisdiction in which they cannot legally marry.
Proxy weddings are not recognized as legally binding in most jurisdictions: both parties must be present. A proxy marriage contracted elsewhere may be recognised where proxy marriage within the jurisdiction is not; for example, Israel recognises proxy marriages abroad between Israelis who might not have been permitted to marry in Israel. Under the English common law, if a proxy marriage is valid by the law of the place where the marriage was celebrated (the lex loci celebrationis) then it will be recognised in England.
Beginning in the Middle Ages European monarchs and nobility sometimes married by proxy. A well-known example more recently involved the marriage of Napoleon I of France and the Austrian Archduchess Marie Louise in 1810. Another famous example is the marriage of Mary, Queen of Hungary to Louis I, Duke of Orléans in 1385. Catherine of Aragon wed Prince Arthur by proxy in 1499. A famous 17th-century painting by Peter Paul Rubens depicts the proxy marriage of Marie de' Medici in 1600. By the end of the 19th century the practice had largely died out. 
As of 2015[update], various Internet sites offer to arrange proxy and double-proxy marriages for a fee, although the service can generally be set up by any lawyer in a jurisdiction that offers proxy marriage. Video conferencing allows couples to experience the ceremony together. A unique "space wedding" took place on August 10, 2003 when Ekaterina Dmitriev married Yuri Malenchenko, a cosmonaut orbiting the Earth in the International Space Station, by proxy in Texas, USA.
In the United States, proxy marriages are provided for in law or by customary practice in Texas, Colorado, Kansas, Montana, and Alabama. Of these, Montana is the only state that allows double-proxy marriage. Proxy marriages cannot be solemnized in all other U.S. states.
In 1924, a federal court recognized the proxy marriage of a resident of Portugal, where proxy marriages were recognized at the time, and a resident of Pennsylvania, where common-law marriages could be contracted at the time. The Portuguese woman was allowed to immigrate to the United States on account of the marriage, whereas she would have been inadmissible otherwise due to being illiterate.
During the early 1900s, United States proxy marriages increased significantly when many Japanese picture brides arrived at Angel Island, California. Since the early 20th century, it has been most commonly used in the United States for marriages where one partner is a member of the military on active duty. In California, proxy marriage is only available to deployed military personnel. In Montana, it is available if one partner is either on active military duty or is a Montana resident.
Italy permits proxy marriages to Italian soldiers in times of war. Canada ended any form of proxy marriage where one or both spouses are not present, with the exception of men and women in the Canadian armed forces. This became effective on June 11, 2015.
Catholic Canon Law permits marriage by proxy, but requires officiants to receive authorization from the local ordinary before proceeding.
- Apt v Apt  P 83; CB (Validity of marriage: proxy marriage)  UKAIT 80
- Christopher Clarkson and Jonathan Hill (2011). The Conflict of Laws (4th ed.). Oxford University Press. p. 21. ISBN 9780199574711.
- Cafazzo, Debbie (2006-06-01). "Marriage by proxy used for ages". Tacoma News Tribune.
- Christenson, Sig (2010-01-01). "With this Skype, I thee wed". San Antonio Express-News. Archived from the original on January 17, 2010. Retrieved 2010-01-08.
- "From Russia With Love". H Texas magazine. Archived from the original on 2006-11-01. Retrieved 2007-03-27.
- "Proxy Marriage and US Immigration Laws - Marriage By Proxy". marriagebyproxy.com. S&B Inc. Archived from the original on October 3, 2010.
- Barry, Dan. "Trading Vows in Montana, No Couple Required". The New York Times. March 10, 2008.
-  Archived April 25, 2010, at the Wayback Machine.
- "Section 40-1-301". Montana Code Annotated 2015. Montana Legislative Services. Accessed on May 19, 2016.
- "No Marriage By Proxy in Missouri". stlouiscityrecorder.org.
- "Alien's Marriage by Proxy Held to Give Alien Woman Status of "Wife"". Virginia Law Register 10 (7): 516–520. November 1924. JSTOR 1107813.
- "c. 1105", Code of Canon Law: Latin-English Edition, Washington DC 20064: Canon Law Society of America, 1983, retrieved 2012-11-14
- Operation ‘I Do’: Moody AFB Attorneys Help Couple Tie Knot
- Marriage by proxy in California (limited to military stationed abroad in war or conflicts)
- Ernest G. Lorenzen, "Marriage By Proxy and the Conflict of Laws" (1932)
- Double Proxy Marriage in Montana (limited to Montana residents and military stationed abroad in war or conflicts)