<p>The gambler’s fallacy, a common cognitive bias, is the belief that past independent events can influence future independent events. This fallacy occurs when individuals assume that after a certain event happens frequently within a specific period, it is less likely to occur in the future, and vice versa. For example, when rolling a fair die, the probability of landing a six remains 1/6, regardless of the outcomes of previous rolls. However, the gambler’s fallacy leads individuals to mistakenly believe that streaks influence future outcomes. This paper, using a descriptive-analytical method, drawing on insights from probability theory, cognitive psychology, and philosophy, explores the implications of this fallacy on business decision-making and how the gambler’s fallacy distorts business decision-making; especially in forecasting, investing, and market strategy. In business, the gambler’s fallacy can lead to faulty assumptions, such as believing that a period of high sales will be followed by a decrease. Avoiding this fallacy requires a disciplined, data-driven mindset and a clearer grasp of randomness and statistical independence.</p>