Background: Meniscal injuries are increasingly being recognized as a prevalent condition among individuals with osteoarthritis. Magnetic resonance imaging (MRI) plays a crucial role in verifying the presence of such tears in these patients. This study was done to assess the characteristics of meniscal injuries in osteoarthritis patients using MRI. Materials and Methods: This research was a cross-sectional investigation which enrolled osteoarthritis patients who provided informed consent for undergoing MRI. Subjects with traumatic or advanced knee injuries were excluded. MRI evaluations of the right knee were independently analyzed by a radiologist and an orthopedic specialist, and their observations were compared. The severity of osteoarthritis was assessed using the Kellgren–Lawrence grading system. Results: Among 311 osteoarthritis patients, 60% were female. Meniscal tears were identified in 89.38% of participants, with the medial meniscus being the most frequently affected site. Complex tears were the predominant type, comprising 50.36% of cases, and the posterior horn of the meniscus was the most commonly involved region. The prevalence of meniscal injuries rose significantly with advancing age, with 42.50% of patients aged 60 years or older showing tears. Furthermore, the prevalence correlated positively with increasing osteoarthritis severity. Approximately half of the patients classified as grade 4 osteoarthritis had meniscal injuries, compared to only 10% in grade 1. Conclusion: Meniscal injuries are highly prevalent among osteoarthritis patients, as evidenced by MRI findings. The incidence of these tears rises with advancing age and the severity of osteoarthritis. Routine MRI evaluations in this population can facilitate the early detection of meniscal injuries, enabling more effective management strategies.