古英語の前置詞 (こえいごのぜんちし) では、古英語で使われていた前置詞を示す。現代英語にはないものとして and, ǣr, mid, ymb などがある。

単独 古英語 現代語訳æfterafter; along, through, during; according to, by means of; about.ǣrbeforeætat, to, before, next, with, in, for, against; unto, as far as.andagainst, before, on.andlangalongbe, bīby, near to, to, at, in, on, upon, about, with; of, from, about, touching, concerning; for, because of, after, by, through, according to; beside, out of.ēacwith, in addition to, besides.forfor, on account of, because of, with, by; according to; instead of.fōr, fōrebefore.framfrom; concerning, about, of.gemangamonggeondthrough, throughout, over, as far as, among, in, after, beyond.inin, on; into, to.innanin, into, within, from within.midwithnēahnearnefneexceptofof, from, out of, off.oferabove, over; upon, on; throughout; beyond, more than;onon; in, at;oþto, unto, up to, as far as.samodwith, at.tōto, at.þurhthroughufenanabove, besides.underunder.uppanupon, on.ūtanwithout, outside of.wiðtowards, to; with, against; opposite to; by, near.wiðeragainst. ymbabout, by.

複合 古英語 現代語訳bæftanafter, behind; without.befōranbefore.begeondanbeyond.behindanbehind.beinnanin, within.beneoðanbeneath.betweonum, betweox, etc.betwixt, between, among, amid, in the midst.bīrihtenear.būfanabove.būtanout of, against; without, except.intōintoonbūtanabout.ongeagn, etc.opposite, against; towards; in reply to.onuppanupon, on.tōēacanin addition to, besides.tōforanbefore.tōgeagnestowards, against.tōmiddesin the midst of, amidst.tōweardtoward.underneoþanunderneath.wiðæftanbehind.wiðinnanwithin.wiðforanbefore.wiðūtanwithout, outside of.ymbūtanabout, around; concerning.

en:Old English prepositions