YOH-6A - Prototype version. 原型版本
OH-6A - Light observation helicopter, powered by a 263-kW (317-shp) Allison T63-A5A turboshaft engine. 輕型觀察直升機

OH-6A - NOTAR Experimental version. 實驗版
OH-6B - Re-engined version, powered by a 298-kW (420-shp) Allison T63-A-720 turboshaft engine. 新引擎版,動力由一個298千瓦阿利森t63 - 1 - 720渦輪軸發動機
OH-6C - Proposed version, powered by a 313.32-kW (400-shp) Allison 25-C20 turboshaft engine, fitted five rotor blades. 提升的版本,動力由313.32千瓦 阿利森25 - c20渦軸發動機,裝上5旋翼葉片
OH-6J - Light observation helicopter for the JGSDF. Built by Kawasaki Heavy Industries under licence in Japan. Based on the OH-6A Cayuse helicopter. 受權日本川崎重工生產之日本版輕型觀察直升機, 根據早期 OH-6A 生產.
OH-6D - Light observation, scout helicopter for the JGSDF. Built by Kawasaki Heavy Industries under licence in Japan. Based on the Hughes Model 500D helicopter. 日本版輕型觀察,偵察直升機, 受權日本川崎重工生產, 根據民用版MD500生產

日本的OH - 6D
EH-6B - Special Forces electronic warfare, command post version. 特戰部隊的電子戰版,有前進指管功能.
MH-6B - Special Forces version. 特種部隊的版本
TH-6B - A Navy derivative of the MD-369H, six McDonnell Douglas TH-6B Conversion-in-Lieu-of-Procurement aircraft are used as an integral part of the United States Naval Test Pilot School's test pilot training syllabus. The aircraft and associated instrumentation and avionics are used for the in-flight instruction and demonstration of flying qualities, performance and missions systems flight test techniques海軍衍生於MD - 369h ,六架麥道次- 6B型轉換-在-代-的採購飛機是用來作為不可分割的一部分,美國的海軍試飛員學校的測試飛行員訓練課程。 The aircraft and associated instrumentation and avionics are used for the in-flight instruction and demonstration of flying qualities, performance and missions systems flight test techniques. 飛機和相關的儀器儀表和航空電子設備是用來為在飛行中的指導和示範飛行品質,性能和任務系統飛行試驗技術
AH-6C - Special Forces attack version. Modified OH-6A to carry weapons and operate as a light attack aircraft for the 160th SOAR(A). 特種部隊攻擊的版本
EH-6E - Special Forces electronic warfare, command-post version. 特種部隊電戰版.
MH-6E - Improved attack helicopter used by US Army special forces units, and stealthy light attack and transport helicopter for US Army special forces units. 改善攻擊直升機所用的美軍特種部隊單位,隱身輕型攻擊和運輸直升機為美國陸軍特種部隊
AH-6F - Special Forces attack version. 特種部隊攻擊的版
AH-6G - Special Forces attack version. 特種部隊攻擊的版
MH-6H - Special Forces version. 特種部隊更新版
AH/MH-6J - Improved special forces transport and attack versions. Updated light attack helicopter based on the MD 530MG and equipped with an improved engine, FLIR, and a GPS/inertial navigation system. 改進的特種部隊運輸和攻擊的版本。 提升航電,射控設備, 最新的輕型攻擊直升機的基礎上,MD530MG,並配備了改進的發動機,前視紅外,以及全球定位系統/慣性導航系統。

Two AH-6J Little Birds take off for a mission during Operation Iraqi Freedom in 2003
AH/MH-6M - Also occasionally referred to as the Mission Enhanced Little Bird (MELB), it is a highly modified version of the MD 530 series commercial helicopter. 高度修改任務加強版.