Last modified: 1 January 2023
Deaths in reigning and non-reigning royal houses of the year 2010.
* = New
| Date | Name | Age | Place |
| January 6 | Marie-Agnes Prollius née Countess zu Solms-Baruth | 93 | München, Germany |
| January 13 | Fürst Alfred-Ernst zu Löwenstein-Wertheim-Freudenberg | 85 | Kreuzwertheim, Germany |
| January 21 | Sheikh Abdulrahman bin Ibrahim Al Khalifa of Bahrain | ||
| January 21 | Count Christian zu Castell-Rüdenhausen | 57 | |
| January 22 | Iskandar Ismail, Sultan of Johor | 77 | Puteri Specialist Hospital, Johor, Malaysia |
| January 28 | Prince Lamoral von Thurn und Taxis | 72 | Vienna, Austria |
| January 29 | Dalal Mohammad Abdullah Al-Rebee’a (Kuwait) | 77 | |
| January 29 | Sheikh Mohammed bin Khalid bin Ahmed Al Qasimi of Sharjah (UAE) | ||
| February 3 | Archduchess Regina of Austria née Princess von Sachsen-Meiningen | 85 | Villa Austria, Pöcking am Starnberger See, Germany |
| February 7 | Princess Gabriella Lobkowicz | 91 | Prague, Czechia |
| February 8 | Count Albrecht Sizzo zu Solms-Wildenfels | 80 | Wiesbaden, Germany |
| February 9 (car crash) | Prince Alexis zu Windisch-Graetz | 18 | Ospedale San Sebastiano, Caserta, Italy |
| February 12 | Shahzada Khushwaqt ul Mulk, Prince of Chitral | 96 | Islamabad, Pakistan |
| February 15 | Count Christoph von und zu Trauttmansdorff-Weinsberg | 68 | |
| February 16 | Princess Erina von Sachsen née Eilts | 88 | Emden, Germany |
| February 16 | Olivier Charbonneaux (Croÿ) | 67 | Luthenay-Uxeloup, Nièvre, France |
| February 17 | Jean-Bernard Venturini (Spain) | 65 | Colombes, Hauts-de-Seine, France |
| * February 20 | Gerwin Franzen (Schönborn) | 80 | United Kingdom |
| February 21 | Sarala Manandhar (Nepal) | 90 or 91 | Kathmandu, Nepal |
| February 21 | Prince Casimir-Johannes zu Sayn-Wittgenstein-Berleburg | 93 | |
| February 24 | Sheikh Mubarak bin Mohammed Al Nayhan of Abu Dhabi (UAE) | Abu Dhabi, UAE | |
| March 6 | Prince Hubertus zu Bentheim und Steinfurt | 90 | Ibbenbüren, Germany |
| March 11 | Princess Sheikha bint Abdulrahman Al Faisal Al Saud of Saudi Arabia | 95 | |
| March 12 | Prince Saud bin Hazlul bin Saud bin Abdulaziz of Saudi Arabia | ||
| March 12 | Anissa Malikyar née Princess of Afghanistan | 84 | Alexandria, Virginia, USA |
| March 15 | Hereditary Grand Duchess Elisabeth von Sachsen-Weimar-Eisenach | 98 | München, Germany |
| March 23 (burial) | Sheikh Fahad Mubarak Sabah Al Nasser Al Sabah of Kuwait | 50 | |
| March 24 | Fürst Maximilian zu Khevenhüller-Metsch | 90 | Niederosterwitz, Austria |
| March 26 (plane crash) | Sheikh Ahmed bin Zayed al-Nayhan of Abu Dhabi (UAE) | Morocco | |
| April 2 | Prince Edouard de Lobkowicz | 83 | Paris, France |
| April 6 | Baron Augustin d’Aboville (Fürstenberg) | 72 | Paris, France |
| April 7 | Prince Fahd bin Saud Al-Kabeer of Saudi Arabia | 67 | |
| April 12 | Countess Hedwig zu Stolberg-Stolberg | 87 | |
| April 14 | Prince Johannes Heinrich von Sachsen-Coburg und Gotha | 79 | Innsbruck, Austria |
| April 17 | Sheikh Rashid bin Adbul Aziz bin Rashid al Nuaimi of Ajman (UAE) | 23 | |
| April 17 | The mother of Prince Mansour bin Miteb bin Abdulaziz of Saudi Arabia | 75 | Jeddah, Saudi Arabia |
| April 17 | Inkhosikati LaMhlanga (Swaziland) | 73 | |
| April 22 | Sheikha Nora bint Sultan bin Ahmed al Mualla of Umm Al Quwain (UAE) | ||
| April 24 (car crash) | Hereditary Prince Carl Friedrich zu Löwenstein-Wertheim-Rosenberg | 43 | Nürburgring, Nürburg, Germany |
| April 24 | Rafael Ernesto Longo (Waldbott-Bassenheim) | Buenos Aires, Argentina | |
| May 5 | Sheikha Hessa Abdullah bin Issa bin Ali Al-Khalifa of Bahrain | ||
| May 5 | Gert Sielaff (Oettingen-Wallerstein) | 58 | |
| May 9 | Per-Edvard Lithander (Prussia) | 64 | Göteborg, Sweden |
| May 9 | Prince Naif bin Abdullah bin Abdulrahman of Saudi Arabia | 60 | |
| May 15 | Archduke Rudolph of Austria | 90 | Brussels, Belgium |
| May 16 | King Kaswarra Patrick Mutengesa II of Mitego (Congo) | 81 | Fort Portal municipality, Uganda |
| May 22 | King Lwandile Zwelenkosi Matanzima of AbaThembu BaseRhoda | 39 | Life St Dominic’s Hospital, East London, South Africa |
| May 23 | Grand Duchess Leonida Georgievna of Russia née Princess Bagration-Mukhransky | 95 | Hospital La Paz, Madrid, Spain |
| June 5 | Sheikh Nawaf Bader Saud Al-Malek Al-Sabah of Kuwait | 88 | |
| June 12 | Count Karl Max von Schaesberg | 88 | |
| June 17 (shot) | Sheikh Basel Salem Sabah Al-Salem Al-Sabah | 52 | |
| June 25 | Howard Oxenberg (Yugoslavia) | 90 | Palm Beach Gardens, FL, USA |
| June 27 | Sayyid Thuwainy bin Shihab bin Faisal al Said of Oman | 85 or 86 | |
| July 4 | Maharajkumari Karuna Devi of Burdwan | 72 | Calcutta, India |
| July 6 | Sheikh Isa bin Ibrahim Al Khalifa of Bahrain | ||
| July 12 | Queen Damali of Buganda | 80 or 81 | Nakasero Hospital, Uganda |
| July 15 | Prince Osman Nami Osmanoglu Bey Efendi (Turkey) | 92 | Dr. Siyami Hersek Cardiovascular Surgery Hospital in Istanbul, Turkey |
| July 26 | Countess Caroline von Wedel (Reuss) | 87 | Frankfurt am Main, Germany |
| July 27 | Josef Christoforetti (Windisch-Graetz) | 91 | Salzburg, Austria |
| July 28 | Sheikha Badria Saud Al-Mohammad Al-Sabah of Kuwait | 85 | |
| August 1 | Maharaja of Dhrangadhra-Halvad | 87 | |
| August 1 | Maria Anna Freifrau von Mayr-Melnhof née Countess von Orsini und Rosenberg | 82 | Salzburg, Austria |
| August 11 | Sheikha Maryam bint Ghanem bin Salim Al Shamsi of Sharjah (UAE) | 95 | |
| August 17 | Glen Lee Hollinger (Schönborn) | 74 | Los Angeles, CA, USA |
| August 18 | Prince Carlos Hugo de Bourbon de Parme, Duke of Parma and Piacenza | 80 | Barcelona, Spain |
| August 19 (motorcycle accident) | Prince Richard zu Sayn-Wittgenstein-Berleburg | 58 | Near Half Moon Road, six miles south of Deer Park, WA, USA |
| August 20 | Princess Hessah bint Turki bin Abdulaziz bin Abdullah bin Turki Al Saud of Saudi Arabia | 75 | |
| August 22 | Princess Hind al-Fassi (Saudi Arabia) | Cairo, Egypt | |
| August 28 | Johanna Freifrau von Aretin née Countess Colloredo-Mansfeld | 87 | |
| September 5 | Countess Brydgytte Blanche Bentinck | 93 | Haren (GR), The Netherlands |
| September 12 | Prince Ulrich zu Wied | 79 | Rottach-Egern, Germany (?) |
| September 16 | Sheikha Asila bint Saif bin Surour Al Sharqi of Fujairah (UAE) | 90 | |
| September 16 | Fürst Friedrich Wilhelm von Hohenzollern | 76 | Sigmaringen, Germany |
| September 19 | Prince Ferdinand zu Bentheim und Steinfurt | 72 | Bornheim, Germany |
| September 27 | Archduchess Engel Virginia of Austria-Tuscany | 73 | Vienna, Austria |
| October 4 | Countess Wilhelmine von Keyserling née Princess von Auersperg | 89 | Vienna, Austria |
| October 6 | Countess Gabrielle von Kuefstein née Countess von Mensdorff-Pouilly | 84 | Hospital, Horn, Austria |
| October 9 | Maria Kainz née Princess von Auersperg | 92 | Waidhofen an der Thaya, Austria |
| October 10 | Sheikha Huda Badr al Muhammad Al-Ahmed Al-Sabah of Kuwait | 48 | |
| October 12 | Sheikh Ahmad Mohammad Faisal Al-Malek Al-Sabah of Kuwait | 66 | |
| October 23 | Princess Irmingard of Bavaria | 87 | Leutstetten, Germany |
| October 27 | Sheikh Saqr bin Mohammed Al Qasimi, Ruler of Ras al Khaimah (UAE) | 90 or 92 | Ras Al Khaimah, UAE |
| October 29 | Countess Juliana von Wurmbrand-Stuppach née Galich | 82 | CA, USA |
| November 4 | Wolfram Freiherr von Strachwitz und Gross-Zauche (Croÿ) | 77 | Bonn, Germany |
| November 7 | Sheikh Abdul Aziz bin Humaid bin Mohammed Al Qasimi of Ras Al Khaimah (UAE) | ||
| November 13 | Count Dieter von Brühl (Waldburg zu Wolfegg und Waldsee) | 84 | |
| * November 14 | Erica Wetzig née Countess zu Stolberg-Wernigerode | 91 | |
| November 15 | Mrs Max Descraques Princess Nguyen Thi Nhon (Vietnam) | 84 | Nice, Alpes-Maritimes, France |
| November 17 | Princess Hessah bint Khalid bin Abdulaziz of Saudi Arabia | 59 | abroad |
| November 23 | Prince Badr ibn Turki ibn Abdulaziz ibn Faisal Al Saud of Saudi Arabia | 31 | |
| November 24 | Heinz Otto (Solms-Laubach) | 83 | |
| November 29 | Princess Margarete zur Lippe-Weissenfeld | 78 | Rendsburg, Germany |
| December 2 | Sheikh Nasser Mohammad Al-Salman Al-Sabah of Kuwait | 75 | |
| December 5 (car crash) | Sheikh Khalifa bin Abdulla bin Hassan bin Ali al-Thani of Qatar | 20s | Anbar province, Iraq |
| December 10 | Countess Marie Christine Wolff Metternich née Altgräfin zu Salm-Reifferscheidt-Krautheim und Dyck | 78 | Göttingen, Germany |
| December 17 | Sheikh Rashid bin Isa bin Salman Al Khalifa of Bahrain | Germany | |
| December 20 | Prince Friedrich von und zu Liechtenstein | 73 | Riegersburg, Austria |
| December 27 | Prince Badr bin Musaed bin Abdulla bin Abdulrahman al-Saud of Saudi Arabia | 33 | |
| December 28 | Heinz Köster (Thurn und Taxis) | 79 | Königstein-Falkenstein, Germany (?) |
| December 29 | Thomas Landsberg (Sachsen-Weimar-Eisenach) | 65 | |
| Exact date unknown | Princess Waltraud of Prussia née Freydag | 69 or 70 |