| Office: | Ambassador of the German Empire in Athens |
| Term Start: | 1887 |
| Term End: | 1890 |
| Predecessor: | Egon von den Brincken |
| Successor: | Ludwig von Wesdehlen |
| Office1: | Ambassador of the German Empire in Rio de Janeiro |
| Term Start1: | 1879 |
| Term End1: | 1886 |
| Predecessor1: | Heinrich von Beust |
| Successor1: | Otto Magnus von Dönhoff |
| Office2: | Ambassador of the German Empire in Buenos Aires and Montevideo |
| Term Start2: | 1869 |
| Term End2: | 1875 |
| Predecessor2: | Friedrich von Gülich |
| Successor2: | Theodor von Holleben |
| Office3: | Ambassador of the Kingdom of Saxony in Vienna |
| Term Start3: | 1866 |
| Term End3: | 1869 |
| Predecessor3: | Rudolf von Könneritz |
| Successor3: | Carl Gustav Adolf von Bose |
| Birth Date: | 10 February 1835 |
| Birth Place: | Dresden, Kingdom of Saxony |
| Death Place: | Dresden, German Empire |
| Parents: | Johann Friedrich Le Maistre Elisabeth Helene Benecke von Gröditzberg |
| Relations: | Wilhelm Christian Benecke von Gröditzberg (grandfather) |
Rudolf Friedrich Le Maistre (10 February 1835 - 1 April 1903) was a Saxon and Imperial German diplomat.
Le Maistre was born in Dresden in the Kingdom of Saxony on 10 February 1835.[1] He was a son of diplomat Johann Friedrich Le Maistre (1790–1874)[2] and Elisabeth Helene Benecke von Gröditzberg (b. 1810), who married in 1833.
His maternal grandfather was Wilhelm Christian Benecke von Gröditzberg, the German banker, merchant, estate owner and art collector (who had been ennobled in 1829 as Benecke von Gröditzberg, after he had bought the fief Gröditzberg).[3]
Le Maistre was a Privy Legation Councilor. On 5 March 1869, King Frederick William IV appointed the Royal Saxon legation councilor Le Maistre as Minister-Resident of the North German Confederation to the governments of the Argentine Confederation and the Republic of Uruguay. Le Maistre presented his letter of accreditation to the government of Domingo Faustino Sarmiento in Argentina on 5 March 1869 and to the government of Lorenzo Batlle y Grau in Uruguay on 22 March 1869.
In 1882, Le Maistre was Emperor William I's Envoy Extraordinary and Minister Plenipotentiary to King Pedro II and negotiated a consular treaty with Brazil.[4] From 1887 to 1890, he was the Envoy of the German Empire in Athens.[5]
Le Maistre died in Dresden on 1 April 1903 and was buried at Trinity Cemetery there.[1]
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