Roger Lestrange or Roger Strange (died 31 July 1311) was an English knight, commander and royal advisor.
The second son of John Lestrange and his wife Lucy, daughter of Robert of Tregoz, he was given land taken by Henry III of England from rebels in the Second Barons' War. From May 1270 to October 1274 he was Sherriff of Yorkshire, but the focus of his activities was in Cheshire, Shropshire and Staffordshire. Due to his local knowledge of the Welsh Marches he was an important advisor to Edward I of England during his conquest of Wales. During Edward's first campaign in 1277 he was put in charge of Oswestry Castle, Dinas Bran, Builth and Montgomery Castle - the Welsh inhabitants living near these castles regarded him as a tyrant.
Roger played a major part in the 1282-83 campaign and on 30 October 1282 succeeded Roger Mortimer, 1st Baron Mortimer as the English commander in mid-Wales. On 11 December he fought at the battle of Orewin Bridge, in which Llywelyn ap Gruffydd was killed - Lestrange wrote the letter informing Edward of his death. From 1283 he took part in the siege and capture of Castell y Bere. In 1284 he took part in Edward's castle-building campaign in north Wales In 1287 he took part in the suppression of Rhys ap Maredudd's revolt and the siege of Dryslwyn Castle, as well as the suppression of the 1294 Welsh uprising under Madog ap Llywelyn and the 1295 Gascogny and 1297 Flanders campaigns. On 21 October 1283 he was transferred to the role of justiciar of the "Forest south of the Trent", which he held until 12 February 1297.