The Heineken bottle symbol is a four-letter word, 'STAR'. The STAR has been used as the Heineken logo since the 1960s and is now one of the most recognizable logos in the world. It is a simple, yet powerful symbol that has become synonymous with the Heineken brand. The STAR is a reminder of the company's commitment to quality and excellence, and it serves as a reminder of the company's long history of success.