恒生指數有限公司（英語：Hang Seng Indexes Company Limited），之前叫恒指服務有限公司，係垣生銀行有限公司（香港交易所：0011）嘅全資附屬機構，負責編製同管理恒生指數同一系列其他指數。
Hang Seng Indexes Company Limited, formerly known as Hang Seng Services Company Limited, is a wholly-owned subsidiary of Yuen Sang Bank Limited (HKEX: 0011) and is responsible for the compilation and management of the Hang Seng Index and a range of other indices.