While walking is a major goal in stroke rehabilitation, many chronic stroke survivors have not achieved independent ambulation. Task-specific gait re-training shows promise in post-stroke therapy. Research on transcranial direct current stimulation (tDCS) has shown potential benefits for fine motor skill learning but lacks evidence for gross motor skill learning; specifically gait re-training. It is hypothesized that a combination of these therapies may yield benefits for stroke rehabilitation. Consequently, this study endeavoured to compare the efficacy of gait re-training during real and sham stimulation on gait kinematics in chronic stroke survivors. A randomized double-blinded case study was implemented, whereby 10 chronic stroke survivors (≥ 6 months) were divided into either an attention-matched control group (CON; n = 4), or an 8-week task-specific gait re-training program with concurrent tDCS (1 mA; 20 minutes; n = 2) or with sham stimulation (20 minutes; n = 3). Gait kinematics were measured pre- and post-intervention by using the two-minute walk test and the APDM mobility lab™. Double support (DS) time improved in real (Median = 0.46, IQR = 0.59), compared to sham stimulation (Median = 0.73, IQR = 1.93) and the CON attention-matched group (Median = -1.12, IQR = 1.36). Additionally, DS variability decreased in real (Median = −0.08, IQR = 0.18) and sham (Median = 0.05, IQ = 0.04) stimulation groups; compared to the CON group (Median = 0.25, IQR = 0.46). This study presents preliminary evidence for the benefits of tDCS combined with task-specific gait re-training on gait quality, specifically synchronization, in chronic stroke survivors. Additionally, task-specific gait re-training alone may also benefit gait steadiness.