The article aims to identify the consumers' perception of marketing standardization and adaptation activities deployed by multinational companies in a foreign market with a high national identity. This is analysed on the example of a fast-food chain of McDonald's in Vietnam. This paper evaluates these tactics in terms of satisfying consumer demands and the perceptions of Vietnamese consumers towards the marketing mix implementation of the company. The analysis is based on focus group interviews, observations, and online surveys conducted in Vietnam. The findings provide empirical evidence that international marketers should balance between standardization and adaptation in the marketing strategy. In countries of high national identity it is important to emphasize the company's global distinguishing features, but at the same time to show respect for local culture, including local food taste and consumer behaviour. The case of McDonald's provides recommendations for multinational companies to expand their operations and achieve their strategic goals in Vietnam.