Background In recent years, there has been an increase in the use of the internet and information technology for accessing health information. This study aimed to determine the factors that affect patients with neurological disabilities and their willingness to search for information via the internet. In addition, we aimed to assess how patients manage this information, considering the increasing availability of online information and websites that discuss health and diseases, as well as the spread of communication technology and its accessibility to the public. Methodology A cross-sectional, online, self-administered, questionnaire study was conducted in Saudi Arabia. The study targeted patients with neurological diseases who had disabilities. The questionnaire was designed to measure the demographic data, physical disability using the 10-item physical function component of the 36-Item Short Form Health survey, the perceived usefulness of online health information, the perceived ease of use, and the perceived risk of online health information. Lastly, the questionnaire measured online health information-seeking intentions and information use. Data analysis was performed using RStudio (R version 4.1.1, Posit, Boston, USA). Results We received 1,179 responses, of which 399 were excluded due to using another way to get information rather than the internet, 31 did not have neurological disabilities, and 136 did not complete the questionnaire. The remaining 613 responses were included in the final analysis. The participants were mostly male (54.6%), not married (54.6%), and had a bachelor's degree (49.99%). The average age of participants was 18-25 years (24.5%) and 26-35 years (23.2%), Additionally, most participants resided in the western (26.9%) and eastern (25.9%) regions. Most participants (39.5%) had a monthly income of 5,000 to 10,000 SAR. Further, the most common neurological diseases were multiple sclerosis and epilepsy (26.9% and 23.2%, respectively). Based on the analysis of the data, the most important factor affecting online health information-seeking intention was that people with higher monthly incomes were more likely to seek online health information; these included people with an income of 10,000-20,000 SAR and >20,000 SAR. The most common factor affecting information use was the region of residence. The southern and western regions were less likely to adopt information use. Conclusions The monthly income and the area of residence had the greatest impact on people with neurological disabilities who sought online health information in the Kingdom of Saudi Arabia. Educational campaigns and workshops should be arranged to increase the population's awareness of this topic, as well as to reveal the extent and prevalence of online health information seeking among disabled patients.