Alexander Fletcher or Alex Fletcher may refer to:

• Alexander Fletcher (British politician) (1929–1989), known as Sir Alex Fletcher, Conservative Member of Parliament (MP) in the UK
• Alexander Fletcher (colonial politician), Canadian politician
• Alexander Fletcher (minister) (1787–1860), British preacher, author of devotional works and children's religious education
• Alex Fletcher (actress), British actress
• Alex Fletcher (footballer), a striker for Plymouth Argyle
• Alex Fletcher, a character played by Hugh Grant in the 2007 film Music and Lyrics

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