Direct answer: No, male cats do not go into heat. Only unspayed female cats go through heat cycles, while intact males may show sexual and territorial behaviors in response to females in heat but do not experience a true heat cycle themselves. Context and details:

• Female cats in heat: The heat cycle in unaltered females typically begins around 5–9 months of age (early as 3–4 months for some cats), lasts roughly a week to 14 days, and repeats every few weeks during breeding season. Behavior during estrus can include vocalizing, affection, restlessness, and seeking attention. Neutering or spaying eliminates these cycles and many related behaviors. [web results indicate cats go through estrus and associated behaviors; male behavior is a response rather than a cycle]
• Male cats: Intact male cats reach sexual maturity and may exhibit mating-related behaviors (roaming, spraying, increased aggression or sexual interest) but do not experience a heat cycle. They can breed with a female in heat once old enough, but they do not have a "heat" phase themselves. Neutering can reduce or remove many of these behaviors. [web results indicate lack of heat in males; they respond to females in heat]

Practical notes:

• If you have a female cat: If avoiding pregnancy is the goal, the standard recommendation is spaying. Spaying prevents heat cycles and reduces the risk of certain diseases.
• If you have both sexes: Keep unneutered males away from an unspayed female during her heat to prevent unplanned pregnancies and consider neutering all cats to minimize behavioral issues.
• Behavior management: For a cat in heat (the female), provide enrichment, keep indoors, and discuss options with a veterinarian if the cycling is frequent or causing distress.

If you’d like, I can tailor guidance based on your cat’s age, breed, and whether you’re considering neutering/spaying, and discuss signs to tell apart female in heat versus other behaviors.