品牌延伸 是指品牌形成之后，运用品牌本身具有的影响力，将其运用到相关产品或类别中去的企业发展策略。 例子: 皇马足球队卖运动服装。

Brand extension or brand stretching is a marketing strategy in which a firm marketing a product with a well-developed image uses the same brand name in a different product category. The new product is called a spin-off. Organizations use this strategy to increase and leverage brand equity (definition: the net worth and long-term sustainability just from the renowned name). An example of a brand extension is Jello-gelatin creating Jello pudding pops. It increases awareness of the brand name and increases profitability from offerings in more than one product category.