Ludwig Johann Karl Gregor Eusebius Freiherr Roth von Schreckenstein (16 November 1789, in Immendingen – 30 May 1858, in Münster) was a Prussian General of the cavalry and Minister of War.
Her was the son of Friedrich Freiherr Roth von Schreckenstein (1753–1808) and of Kunigunde von Riedheim (1767–1828) and belonged to old Swabian Reichrsritter family Roth von Schreckenstein, which had its ancestral seat in Immendingen.
Already in 1806, Schreckenstein became a squire at the court of Frederick Augustus I of Saxony. On 16 April 1809 he received his commission, and joined the Saxonian cuirassier regiment of Zastrow as a Lieutenant and in 1812 participated in Napoleon's campaign in Russia with the Grande Armée. There he was on the staff of General Johann von Thielmann, and earned great credit in September 1812 at the victory of the Battle of Borodino.
On 15 May 1815, Schreckenstein joined the Prussian service as a Rittmeister and adjutant to Thielmann. He fought with the III Prussian Army Corps in 1815 at the battles of Ligny and Wavre during the Belgian campaign. Promoted to Major in 1816, in 1824 he was appointed staff officer of the 8. Husarenregiment in Düsseldorf. There, on 4 October 1828, he married the Countess Luise von Hatzfeldt-Trachenberg (born 21 November 1800; died 22 January 1835 in Aschersleben), who was the daughter of Prince (after 1803) Franz Ludwig von Hatzfeldt, Herzog von Trachenberg (1756–1827), royal Prussian ambassador in Vienna, and Friederike Karoline Countess of Schulenburg-Kehnert (1779–1832).
Also in times of peace, he could always be sure of the favour of his superiors and preferment in promotions. There followed his appointment to Lieutenant Colonel in 1830 and to Colonel in 1834. In 1837 he received the command over the 13. Kavalleriebrigade in Münster.