“客户协议”常见的英文表达是 "Customer Agreement"。
此外，根据具体语境和行业习惯，也可能使用以下表达：
Client Agreement（常用于专业服务、法律或金融领域）
Customer Contract（强调合同性质）
Terms of Service with Customers（侧重服务条款）
示例：Please read the Customer Agreement carefully before signing.
The Client Agreement outlines the rights and obligations of both parties.