| Dick Lines | |
| Position: | Pitcher |
| Bats: | Right |
| Throws: | Left |
| Birth Date: | 17 August 1938 |
| Birth Place: | Montreal, Quebec, Canada |
| Debutleague: | MLB |
| Debutdate: | April 16 |
| Debutyear: | 1966 |
| Debutteam: | Washington Senators |
| Finalleague: | MLB |
| Finaldate: | October 1 |
| Finalyear: | 1967 |
| Finalteam: | Washington Senators |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 7–7 |
| Stat2label: | Earned run average |
| Stat2value: | 2.83 |
| Stat3label: | Strikeouts |
| Stat3value: | 103 |
| Teams: |
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Richard George Lines (born August 17, 1938) is a Canadian former Major League Baseball relief pitcher who appeared in 107 games for the Washington Senators in and . Born in Montréal but a graduate of Manchester High School in Midlothian, Virginia, Lines spent 13 years in professional baseball (1957–1969). He threw left-handed, batted right-handed, and was listed as 6feet tall and (12 stone, 7 lbs).
Lines was signed by the Pittsburgh Pirates before the 1957 season, and was a starting pitcher for eight years in the minor leagues before being converted to relief in 1965 with the Hawaii Islanders of the Triple-A Pacific Coast League. He made the Washington club the next year, and was an effective relief pitcher for the Senators during his two full seasons with them. He finished his brief major-league career with a total of seven wins, seven losses, six saves, 41 games finished, an excellent WHIP of 1.150, and an ERA of 2.83. In 168 innings pitched, he permitted 146 hits and 48 bases on balls, striking out 103.