AK Steel Holding (AKS)

PROXY STATEMENT

This Proxy Statement is being furnished in connection with the solicitation by the Board of Directors of AK Steel Holding Corporation (the “Company”) of proxies to be voted at the Annual Meeting of Stockholders of the Company to be held on May 29, 2008, and at any and all adjournments thereof.

We are pleased to be able to take advantage of the new Securities and Exchange Commission rule allowing companies to furnish proxy materials to their stockholders over the Internet. We believe that this new “e-proxy” process will expedite stockholders’ receipt of proxy materials and lower the costs and reduce the environmental impact of our annual meeting. On April 17, 2008, we mailed to stockholders a notice containing instructions on how to access our 2008 Proxy Statement and Annual Report on the Internet and to vote online. That notice also contains instructions on how you can receive a paper copy of the Proxy Statement and Annual Report via the United States mail or an electronic copy via e-mail if you prefer either of those alternatives.

PROXY STATEMENT

This Proxy Statement, which will be mailed to stockholders on or about April 16, 2007 together with the 2006 Annual Report to Stockholders, is being furnished in connection with the solicitation by the Board of Directors of AK Steel Holding Corporation (the “Company”) of proxies to be voted at the Annual Meeting of Stockholders of the Company to be held on May 24, 2007, and at any and all adjournments thereof.

PROXY STATEMENT

This Proxy Statement is being furnished in connection with the solicitation by the Board of Directors of AK Steel Holding Corporation (the “Company”) of proxies to be voted at the Annual Meeting of Stockholders of the Company to be held on May 19, 2006, and at any and all adjournments thereof.

At the meeting, the Company’s stockholders will vote for the election of eight directors. The affirmative vote of the holders of a plurality of the shares present in person or represented by proxy at the meeting is required for election as a director. All other matters require the favorable vote of a majority of the shares voted at the meeting in person or by proxy for approval. Each share represented by a duly executed proxy received by the Company prior to the meeting will be voted in accordance with the choices specified therein by the stockholder. If you return a signed and dated proxy card but do not indicate how the shares are to be voted, those shares will be voted as recommended by the Board of Directors. A valid proxy card also authorizes the individuals named as proxies to vote your shares in their discretion on any other matters which, although not described in the Proxy Statement, are properly presented for action at the Annual Meeting. If you indicate on your proxy card that you wish to “abstain” from voting on an item, your shares will not be voted on that item. Abstentions are not counted in determining the number of shares voted for or against any nominee for director or any management or stockholder proposal, but will be counted to determine whether there is a quorum present. Stockholders who execute proxies may revoke them at any time before they are voted by filing with the Company a written notice of revocation, by delivering a duly executed proxy bearing a later date, by submitting a subsequent vote via the internet or by the telephone, or by attending the meeting and voting in person.

If your shares are held through a broker or other nominee, and you do not provide voting instructions to your broker or nominee at least ten days before the Annual Meeting, the nominee has discretion to vote those shares on matters that the New York Stock Exchange (the “NYSE”) has determined are routine. However, a nominee cannot vote shares on non-routine matters without your instructions. If the nominee does not vote on a matter because you have failed to provide instructions, this is referred to as a “broker non-vote.” Broker non-votes will be treated the same as abstentions.

The Board of Directors has fixed the close of business on March 27, 2006 as the record date for the determination of stockholders entitled to notice of and to vote at the meeting. At that date, there were issued and outstanding 110,008,219 shares of common stock, which is the only class of stock outstanding. Holders of common stock are entitled to one vote for each share held on all matters that properly may come before the meeting.

PROXY STATEMENT

This Proxy Statement is being furnished in connection with the solicitation by the Board of Directors of AK Steel Holding Corporation (the “Company”) of proxies to be voted at the Annual Meeting of Stockholders of the Company to be held on May 17, 2005 and at any and all adjournments thereof.

At the meeting, the Company’s stockholders will vote for the election of nine directors. In addition, stockholders will consider and act upon management proposals (i) to approve the amendment to and restatement of the Company’s Stock Incentive Plan and (ii) to approve the amendment to and restatement of the Company’s Long-Term Performance Plan. The affirmative vote of the holders of a plurality of the shares present in person or represented by proxy at the meeting is required for election as a director. All other matters require the favorable vote of a majority of the shares voted at the meeting in person or by proxy for approval. Each share represented by a duly executed proxy received by the Company prior to the meeting will be voted in accordance with the choices specified therein by the stockholder. If you return a signed and dated proxy card but do not indicate how the shares are to be voted, those shares will be voted as recommended by the Board of Directors. A valid proxy card also authorizes the individuals named as proxies to vote your shares in their discretion on any other matters which, although not described in the Proxy Statement, are properly presented for action at the Annual Meeting. If you indicate on your proxy card that you wish to “abstain” from voting on an item, your shares will not be voted on that item. Abstentions are not counted in determining the number of shares voted for or against any nominee for Director or any management or shareholder proposal, but will be counted to determine whether there is a quorum present. Stockholders who execute proxies may revoke them at any time before they are voted by filing with the Company a written notice of revocation, by delivering a duly executed proxy bearing a later date, or by attending the meeting and voting in person.

If your shares are held through a broker or other nominee, and you do not provide voting instructions to your broker or nominee at least ten days before the Annual Meeting, the nominee has discretion to vote those shares on matters that the New York Stock Exchange (the “NYSE”) has determined are routine. However, a nominee cannot vote shares on non-routine matters without your instructions. This is referred to as a “broker non-vote.” Broker non-votes are counted in determining whether a quorum is present.

The Board of Directors has fixed the close of business on March 25, 2005 as the record date for the determination of stockholders entitled to notice of and to vote at the meeting. At that date, there were issued and outstanding 109,765,466 shares of common stock, which is the only class of stock outstanding. Holders of common stock are entitled to one vote for each share held on all matters that properly may come before the meeting.