Q:

Is there any way to minimize chrome window in Selenium? 

Something like driver.manage().window().maximize(); but for minimize the window. 
Thanks! 

A:

Selenium doesn't have minimize() option, atleast not for Java, however you can use setPosition do do it
driver.manage().window().setPosition(new Point(0, 0));

However the better way is to run it as headless browser
ChromeOptions options = new ChromeOptions();
options.addArguments("headless");
WebDriver driver = new ChromeDriver(options);

This way you can use maximized browser while it's running in the background.