Dialogue journal writing is extensively regarded as an effective technique for enhancing the writing motivation of EFL/ESL students. However, studies on how dialogue journal writing enhances EFL students’ writing motivation are scarce in the Ethiopian context. This study investigates the impact of dialogue journal writing on freshman EFL students’ writing motivation. Employing a quasi-experimental design, two intact groups were selected from students in the social science stream. After checking their comparability at the onset of the intervention, the two groups were randomly assigned into experimental (n = 37) and comparison groups (n = 35) using coin flipping. Following this, the experimental group was instructed writing for 10 weeks based on the dialogue journal writing approach and the comparison group for the same period, but following the conventional approach. Data were collected before and after the intervention through a writing motivation questionnaire from both groups. The collected data were analyzed using an independent sample t-test, a paired sample t-test, and one-way MANOVA. The result of the study revealed that dialogue journal writing significantly enhanced the experimental group students' overall writing motivation (p<0.05), with a large effect size (d = 1.46), and its sub-components (enjoyment, self-efficacy, instrumentality, recognition, and effort), (p<0.05), with a moderate effect size (η²p = 0.371) when these sub-components were considered combined. The finding suggests that dialogue journal writing can effectively enhance EFL students’ writing motivation. Therefore, university EFL teachers are recommended to use dialogue journal writing in their writing classes to improve their students’ writing motivation.
