The purpose of this study is to give a cognitive linguistic analysis of metaphor and metonymy in Swedish and Croatian somatic idioms with the component öga/oko based on cognitive linguistics. The theoretical part of this study is the cognitive theory of conceptual metaphor and metonymy formulated by American linguists Lakoff and Johnson (1980). Croatian and Swedish somatic idioms are firstly divided into four groups according to their syntactic and semantic features: 1. Absolutely equivalent somatic idioms, 2. Somatic idioms which are partially equivalent, 3. Somatic idioms which have same meaning bur they are expressed with different lexeme. 4. Croatian somatic idioms without equivalent in Swedish language (Novak-Milić: 2005). In order to make an introduction to the language analysis, which is based on the examples from Swedish and Croatian corpora, the following most important cognitive linguistics concepts are firstly explained: metaphor, metonymy, cultural model, conceptual metaphor, somatic idioms. Research has revealed that analyzed somatic idioms can be divided into three cultural models (Stanojević: 2013): 1. Cultural model of observing, 2. Cultural model of communication, 3. Cultural model of feelings. Each of these cultural models is divided into subcategories in which metaphor and metonymies that appear in examples from Croatian and Swedish corpora are explained. This study confirms cognitive linguistics theory that the meaning of somatic idioms can be described as a reflection of different conceptual metaphors and/or metonymies which are motivated with conceptual understanding of the world.