Spelling ability is a crucial determinant of academic achievement and an integral part of the writing process. It is a complex cognitive-linguistic skill that requires knowledge of letter sound correspondence, phonological awareness, orthographic awareness, and morphological awareness. Despite its importance, research on spelling development in Southern Bantu languages, particularly in Northern Sotho, is still sparse. This study examines the linguistic patterns underlying spelling errors made by Northern Sotho-speaking Grade 3 children, providing a detailed linguistic analysis of error types. Data were collected from 106 Northern Sotho-speaking children using an age-appropriate real-word spelling task that included words of varying complexity. This study explores how Northern Sotho’s agglutinative and disjunctive structure may influence spelling acquisition, particularly in relation to learners’ developing phonological, orthographic, and morphological awareness. A preliminary analysis was conducted to determine some of the spelling errors made by learners at the end of Grade 3. Examples of errors made by children in Northern Sotho included substitution (e.g., kg in kgona ‘be able’ with /k/ or /g/, diacritical letter /š/ in mošemane ‘boy’; /s/ and /hl/ in hlapi ‘fish’ for other digraphs such as /th/ or /ts/), omission (e.g., letter /e/ in words like taelo ‘instruction’, /w/ in befetšwe ‘punished’), addition (e.g., emma for ema ‘stand up’, tayelo for taelo ‘instruction’), nasal consonant deletion (e.g., sekolog for sekolong ‘school’), transposition of letters (e.g.,lhapi for hlapi ‘fish’), and phonetic over-generalizations (i.e., mošimane instead of mošemane ‘boy’). These insights will contribute to a deeper understanding of spelling development in African languages and offer implications for literacy instruction, particularly in multilingual educational contexts.