The objective of this study is to examine the socio-demographic factors contributing to the readmission to a drug rehabilitation centre amongst drug addicts in Brunei Darussalam. This retrospective study used de-identified data obtained from the Al-Islah Rehabilitation Centre for the period 1st January 2010 to 31st December 2017. Univariate and multiple logistic regression analyses with stepwise variable selection method were used to estimate and determine significant factors associated with readmission to the centre. A total of 92 out of 705 subjects (13.0%) were readmitted to the rehabilitation centre within the study period with age ranged from 20 to 59 years (mean=36.1, sd=8.6 years). Univariate logistic regression analysis found significant association between readmission and age of onset, district, marital status, and committed other criminal offence. Multiple logistic regression found that subjects who were in the age group of 40 to 49 (odds ratio, OR= 2.24; 95% CI: 1.16 - 4.37), resided in the Belait district (OR= 1.94; 95% CI: 1.00 - 3.63), divorced or widowed (OR= 2.14; 95% CI: 1.19 - 3.82), had committed other criminal offences (OR= 1.91; 95% CI: 1.16 - 3.11), and voluntarily admitted (OR= 2.33; 95% CI: 1.34 - 4.01) were found to be significantly more likely to get readmitted to the rehabilitation centre. This study provides evidence of socio-demographic factors in relation to readmission to the rehabilitation centre in Brunei Darussalam. However, it is recommended for future researchers to explore other statistical analyses such as survival analysis or mixed methods research, combining both qualitative and quantitative research, to compare the findings of the study.