The context provided doesn't contain specific data on potato chip consumption by country. However, it does provide valuable insights about the chip/crisp market structure globally.
In Europe, which has detailed market data available, the UK emerges as Europe's largest single chip market by value according to industry sources. The UK market is dominated by Walkers (PepsiCo's brand) with approximately 40% market share and KP Snacks (Intersnack) with about 20% share.
For global chip consumption, the context indicates that PepsiCo's Frito-Lay division (including the Lay's brand) is the worldwide leader in the chips/crisps category, suggesting strong consumption in markets where PepsiCo operates, particularly North America where Frito-Lay has dominant market positions.
While the data shows Belarus leads in overall potato consumption at 166.9 kg per capita annually (2023 FAOSTAT), this represents total potato consumption including fresh potatoes, not specifically processed chips. The distinction is important because countries with high fresh potato consumption don't necessarily correlate with high processed chip consumption.
The fragmented nature of global chip markets, with different regional leaders (Walkers in UK, Funny-Frisch vs Lay's in Germany, various brands across other regions), makes it challenging to determine definitively which single country consumes the most potato chips without more specific consumption data by product category.