Pretty much every occurrence of th I can think of see are pronounced as /θ/ or very similar sounds (sometimes slightly closer to f or s).
Still, does th appear in any English word pronounced as two distinct phonemes, /th/ ? I can think of some portmanteaus where the first word ends with t and the other begins with h (e.g. "pothead") but does it ever appear naturally as that pair of phonemes in words, not brought together as part of portmanteaus or blends?