Wild succeeds Calum McIntyre, who left Linnets to take over at Chester shortly after their NPL West Division play-off final defeat to Marine.
He told the club’s official website: "The club has taken really big strides in the last few years. There is a very strong supporter base and an excellent atmosphere and spirit at Runcorn Linnets. I really wanted to be part of it.
"The club has some excellent players who I am confident of retaining.
"The odd ones will inevitably move on but I have had a lot of positive conversations with existing players and also have good quality players in mind to build on the great work Calum (McIntyre) has done."
Wild has recently been assistant at Matlock Town, and was previously manager at Mossley.
Runcorn Linnets received 25 applications for the job but chairman Peter Cartledge said Dave Wild was the unanimous choice from a strong shortlist.
He said: "Dave's professionalism, drive, expertise and knowledge of the Northern Premier League were all key factors in him securing the position.
"He is a born winner and I have no doubt that he will do well for Runcorn Linnets and build on fantastic foundations.
"I wish to thank the four, high-quality shortlisted candidates for the time they have given up to apply and be interviewed.
"All five interviewed extremely well but Dave was the standout candidate."