The article is devoted to the linguocognitive peculiarities of the heterotopia in commemorative discourse, i.e. discourse of remembrance, which has risen to prominence in the era of communicative impact. The term “heterotopia”, introduced into the humanities by M. Foucault, is understood hereinafter as a communicative space for passing on collective memory in commemorative discourse. The article aims to build a linguocognitive model of the “collective memory” heterotopia on which commemorative discourse is based. The research material is 800 small-format English-language online texts published by American, British and Canadian politicians from 2018 to 2024. The texts were extracted from the personal digital files of the author of the present paper. The empirical material was analyzed with general scientific methods (analysis, synthesis, description, etc.) and types of analyzing language phenomena (componential, conceptual, categorial analysis, linguostylistic, discourse analysis, etc.). The modeling was implemented with the cognitive-matrix analysis. Having analyzed the research material, the author comes up with a three-dimensional dynamic cognitive-matrix model of the “collective memory” heterotopia, nuclear-peripheral in structure. The nucleus is formed by the “otherness – sameness” conceptual opposition, while the periphery consists of two cognitive contexts – “Past/Future” and “Present”, mirroring each other, with a permeable boundary in-between. The matrix is set in motion with the mechanism of the cognitive illusion which predetermines a certain interpretation of reality through “biases” in its representation, or viewpoints. The author reveals five “biases”, which targetedly activate the components of the matrix and help to overcome the boundary between the time planes. Means of verbalizing the “collective memory” heterotopia get revealed, precedent names and paremias playing the key role among them.