Can algorithms be trademarked?

No algorithms cannot be trademarked. You can trademark( link : https://www.legalwiz.in/trademark-registration) the name you give to the algorithm but you cannot trademark the algorithm per say. However it can be patented if they have been converted into methods or a system or put into something. As according to patent law a mere idea cannot be patented. If you want to protect a software related algorithm you can copyright the programme which contains the algorithm and secure it. But it cannot be protected separately.