The purpose of this study is to investigate the level of pain, gait speed, and ROM (Range of motion) in community- dwelling older adults with knee joint pain. Methods: A convenience sample of 160 participants living in G city were recruited. Elderly people who suffer from knee joint pain with a pain level ≥5 during the last one year on a visual analogue scale were included in the study. The data were collected from June to August 2016. All statistical analyses were performed using IBM SPSS ver. 22.0. Results: Participants` pain was 6.81 by VAS. The mean gait speed was 13.9 sec/10m. The ROM of left knee and right knee were 54.06° and 56.50°, respectively. The level of pain was different according to gender (t=-4.87, p<.001), economic status (t=3.51, p=.032), diseases (t=5.23, p<.001), diagnosis of arthritis (t=3.86, p<.001), region of knee joint pain (F=9.30, p<.001), duration of pain occurrence (F=13.82, p<.001), and limp (F=3.58, p<.001). The level of knee joint pain and gait speed had significant correlations. Conclusion: The gait speed in older adults is an important variable that should be taken into account in the assessment of their level of knee joint pain.